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Finding the Fourth Proportional to 1,614, 2,431.98 and 1,437.18

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Solution

The fourth proportional to 1,614, 2,431.98 and 1,437.18 is: 2,165.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,614 : 2,431.98 = 1,437.18 : x
  2. Step 2: Convert to fraction form
    1,614/2,431.98 = 1,437.18/x
  3. Step 3: Cross multiply
    1,614x = 2,431.98 × 1,437.18
  4. Step 4: Simplify right side
    1,614x = 3,495,193.02
  5. Step 5: Solve for x
    x = 3,495,193.02/1,614
  6. Step 6: Final answer
    x = 2,165.55

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.