Home / 5,760.20-8,640.81-2,472.53

Finding the Fourth Proportional to 5,760.20, 8,640.81 and 2,472.53

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Solution

The fourth proportional to 5,760.20, 8,640.81 and 2,472.53 is: 3,709.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,760.20 : 8,640.81 = 2,472.53 : x
  2. Step 2: Convert to fraction form
    5,760.20/8,640.81 = 2,472.53/x
  3. Step 3: Cross multiply
    5,760.20x = 8,640.81 × 2,472.53
  4. Step 4: Simplify right side
    5,760.20x = 21,364,618.75
  5. Step 5: Solve for x
    x = 21,364,618.75/5,760.20
  6. Step 6: Final answer
    x = 3,709.00

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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.