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Finding the Fourth Proportional to 1,850.88, 2,553.42 and 1,352.76

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Solution

The fourth proportional to 1,850.88, 2,553.42 and 1,352.76 is: 1,866.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,850.88 : 2,553.42 = 1,352.76 : x
  2. Step 2: Convert to fraction form
    1,850.88/2,553.42 = 1,352.76/x
  3. Step 3: Cross multiply
    1,850.88x = 2,553.42 × 1,352.76
  4. Step 4: Simplify right side
    1,850.88x = 3,454,164.44
  5. Step 5: Solve for x
    x = 3,454,164.44/1,850.88
  6. Step 6: Final answer
    x = 1,866.23

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Half scale
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Double scale
Find fourth proportional to 1,851.88, 2,554.80 and 1,353.76
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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.