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Finding the Fourth Proportional to 3,342.76, 4,612.50 and 1,850.74

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Solution

The fourth proportional to 3,342.76, 4,612.50 and 1,850.74 is: 2,553.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,342.76 : 4,612.50 = 1,850.74 : x
  2. Step 2: Convert to fraction form
    3,342.76/4,612.50 = 1,850.74/x
  3. Step 3: Cross multiply
    3,342.76x = 4,612.50 × 1,850.74
  4. Step 4: Simplify right side
    3,342.76x = 8,536,526.72
  5. Step 5: Solve for x
    x = 8,536,526.72/3,342.76
  6. Step 6: Final answer
    x = 2,553.74

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Half scale
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Double scale
Find fourth proportional to 3,343.76, 4,613.88 and 1,851.74
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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.