Home / 1,731.19-2,597.99-691.10

Finding the Fourth Proportional to 1,731.19, 2,597.99 and 691.10

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Solution

The fourth proportional to 1,731.19, 2,597.99 and 691.10 is: 1,037.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,731.19 : 2,597.99 = 691.10 : x
  2. Step 2: Convert to fraction form
    1,731.19/2,597.99 = 691.10/x
  3. Step 3: Cross multiply
    1,731.19x = 2,597.99 × 691.10
  4. Step 4: Simplify right side
    1,731.19x = 1,795,470.89
  5. Step 5: Solve for x
    x = 1,795,470.89/1,731.19
  6. Step 6: Final answer
    x = 1,037.13

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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.