Home / 1,624.12-2,436.42-759.16

Finding the Fourth Proportional to 1,624.12, 2,436.42 and 759.16

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Solution

The fourth proportional to 1,624.12, 2,436.42 and 759.16 is: 1,138.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,624.12 : 2,436.42 = 759.16 : x
  2. Step 2: Convert to fraction form
    1,624.12/2,436.42 = 759.16/x
  3. Step 3: Cross multiply
    1,624.12x = 2,436.42 × 759.16
  4. Step 4: Simplify right side
    1,624.12x = 1,849,632.61
  5. Step 5: Solve for x
    x = 1,849,632.61/1,624.12
  6. Step 6: Final answer
    x = 1,138.85

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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.