Home / 5,760.20-8,640.44-4,308.57

Finding the Fourth Proportional to 5,760.20, 8,640.44 and 4,308.57

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Solution

The fourth proportional to 5,760.20, 8,640.44 and 4,308.57 is: 6,462.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,760.20 : 8,640.44 = 4,308.57 : x
  2. Step 2: Convert to fraction form
    5,760.20/8,640.44 = 4,308.57/x
  3. Step 3: Cross multiply
    5,760.20x = 8,640.44 × 4,308.57
  4. Step 4: Simplify right side
    5,760.20x = 37,227,940.57
  5. Step 5: Solve for x
    x = 37,227,940.57/5,760.20
  6. Step 6: Final answer
    x = 6,462.96

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1.5x scale

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.