Home / 1,721.38-2,580.51-624.98

Finding the Fourth Proportional to 1,721.38, 2,580.51 and 624.98

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Solution

The fourth proportional to 1,721.38, 2,580.51 and 624.98 is: 936.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,721.38 : 2,580.51 = 624.98 : x
  2. Step 2: Convert to fraction form
    1,721.38/2,580.51 = 624.98/x
  3. Step 3: Cross multiply
    1,721.38x = 2,580.51 × 624.98
  4. Step 4: Simplify right side
    1,721.38x = 1,612,767.14
  5. Step 5: Solve for x
    x = 1,612,767.14/1,721.38
  6. Step 6: Final answer
    x = 936.90

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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.