Home / 1,721.13-2,580.13-624.73

Finding the Fourth Proportional to 1,721.13, 2,580.13 and 624.73

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Solution

The fourth proportional to 1,721.13, 2,580.13 and 624.73 is: 936.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,721.13 : 2,580.13 = 624.73 : x
  2. Step 2: Convert to fraction form
    1,721.13/2,580.13 = 624.73/x
  3. Step 3: Cross multiply
    1,721.13x = 2,580.13 × 624.73
  4. Step 4: Simplify right side
    1,721.13x = 1,611,884.61
  5. Step 5: Solve for x
    x = 1,611,884.61/1,721.13
  6. Step 6: Final answer
    x = 936.53

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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.