Home / 5,812.20-8,023.18-3,715.92

Finding the Fourth Proportional to 5,812.20, 8,023.18 and 3,715.92

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Solution

The fourth proportional to 5,812.20, 8,023.18 and 3,715.92 is: 5,129.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,812.20 : 8,023.18 = 3,715.92 : x
  2. Step 2: Convert to fraction form
    5,812.20/8,023.18 = 3,715.92/x
  3. Step 3: Cross multiply
    5,812.20x = 8,023.18 × 3,715.92
  4. Step 4: Simplify right side
    5,812.20x = 29,813,495.03
  5. Step 5: Solve for x
    x = 29,813,495.03/5,812.20
  6. Step 6: Final answer
    x = 5,129.47

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.