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Finding the Fourth Proportional to 5,626.52, 8,389.11 and 5,158.14

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Solution

The fourth proportional to 5,626.52, 8,389.11 and 5,158.14 is: 7,690.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,626.52 : 8,389.11 = 5,158.14 : x
  2. Step 2: Convert to fraction form
    5,626.52/8,389.11 = 5,158.14/x
  3. Step 3: Cross multiply
    5,626.52x = 8,389.11 × 5,158.14
  4. Step 4: Simplify right side
    5,626.52x = 43,272,203.86
  5. Step 5: Solve for x
    x = 43,272,203.86/5,626.52
  6. Step 6: Final answer
    x = 7,690.76

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.