Home / 1,689.38-2,521.84-1,459.74

Finding the Fourth Proportional to 1,689.38, 2,521.84 and 1,459.74

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Solution

The fourth proportional to 1,689.38, 2,521.84 and 1,459.74 is: 2,179.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,689.38 : 2,521.84 = 1,459.74 : x
  2. Step 2: Convert to fraction form
    1,689.38/2,521.84 = 1,459.74/x
  3. Step 3: Cross multiply
    1,689.38x = 2,521.84 × 1,459.74
  4. Step 4: Simplify right side
    1,689.38x = 3,681,223.42
  5. Step 5: Solve for x
    x = 3,681,223.42/1,689.38
  6. Step 6: Final answer
    x = 2,179.04

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.