Home / 1,721.25-2,581.67-624.92

Finding the Fourth Proportional to 1,721.25, 2,581.67 and 624.92

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Solution

The fourth proportional to 1,721.25, 2,581.67 and 624.92 is: 937.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,721.25 : 2,581.67 = 624.92 : x
  2. Step 2: Convert to fraction form
    1,721.25/2,581.67 = 624.92/x
  3. Step 3: Cross multiply
    1,721.25x = 2,581.67 × 624.92
  4. Step 4: Simplify right side
    1,721.25x = 1,613,325.87
  5. Step 5: Solve for x
    x = 1,613,325.87/1,721.25
  6. Step 6: Final answer
    x = 937.30

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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.