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Finding the Fourth Proportional to 5,805.27, 8,707.50 and 2,520.72

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Solution

The fourth proportional to 5,805.27, 8,707.50 and 2,520.72 is: 3,780.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,805.27 : 8,707.50 = 2,520.72 : x
  2. Step 2: Convert to fraction form
    5,805.27/8,707.50 = 2,520.72/x
  3. Step 3: Cross multiply
    5,805.27x = 8,707.50 × 2,520.72
  4. Step 4: Simplify right side
    5,805.27x = 21,949,169.40
  5. Step 5: Solve for x
    x = 21,949,169.40/5,805.27
  6. Step 6: Final answer
    x = 3,780.90

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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.