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Finding the Fourth Proportional to 1,656.85, 2,487.10 and 1,400.04

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Solution

The fourth proportional to 1,656.85, 2,487.10 and 1,400.04 is: 2,101.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,656.85 : 2,487.10 = 1,400.04 : x
  2. Step 2: Convert to fraction form
    1,656.85/2,487.10 = 1,400.04/x
  3. Step 3: Cross multiply
    1,656.85x = 2,487.10 × 1,400.04
  4. Step 4: Simplify right side
    1,656.85x = 3,482,020.05
  5. Step 5: Solve for x
    x = 3,482,020.05/1,656.85
  6. Step 6: Final answer
    x = 2,101.59

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.