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Finding the Fourth Proportional to 1,850.76, 2,553.96 and 1,011.42

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Solution

The fourth proportional to 1,850.76, 2,553.96 and 1,011.42 is: 1,395.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,850.76 : 2,553.96 = 1,011.42 : x
  2. Step 2: Convert to fraction form
    1,850.76/2,553.96 = 1,011.42/x
  3. Step 3: Cross multiply
    1,850.76x = 2,553.96 × 1,011.42
  4. Step 4: Simplify right side
    1,850.76x = 2,583,126.22
  5. Step 5: Solve for x
    x = 2,583,126.22/1,850.76
  6. Step 6: Final answer
    x = 1,395.71

Related Problems

Find fourth proportional to 925.38, 1,276.98 and 505.71
Half scale
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Double scale
Find fourth proportional to 1,851.76, 2,555.34 and 1,012.42
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.