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Finding the Fourth Proportional to 5,874.20, 8,811.30 and 5,647.40

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Solution

The fourth proportional to 5,874.20, 8,811.30 and 5,647.40 is: 8,471.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,874.20 : 8,811.30 = 5,647.40 : x
  2. Step 2: Convert to fraction form
    5,874.20/8,811.30 = 5,647.40/x
  3. Step 3: Cross multiply
    5,874.20x = 8,811.30 × 5,647.40
  4. Step 4: Simplify right side
    5,874.20x = 49,760,935.62
  5. Step 5: Solve for x
    x = 49,760,935.62/5,874.20
  6. Step 6: Final answer
    x = 8,471.10

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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.