Home / 1,439.49-2,158.23-617.52

Finding the Fourth Proportional to 1,439.49, 2,158.23 and 617.52

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Solution

The fourth proportional to 1,439.49, 2,158.23 and 617.52 is: 925.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,439.49 : 2,158.23 = 617.52 : x
  2. Step 2: Convert to fraction form
    1,439.49/2,158.23 = 617.52/x
  3. Step 3: Cross multiply
    1,439.49x = 2,158.23 × 617.52
  4. Step 4: Simplify right side
    1,439.49x = 1,332,750.19
  5. Step 5: Solve for x
    x = 1,332,750.19/1,439.49
  6. Step 6: Final answer
    x = 925.85

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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.