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Finding the Fourth Proportional to 5,906.72, 8,865.56 and 2,987.12

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Solution

The fourth proportional to 5,906.72, 8,865.56 and 2,987.12 is: 4,483.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,906.72 : 8,865.56 = 2,987.12 : x
  2. Step 2: Convert to fraction form
    5,906.72/8,865.56 = 2,987.12/x
  3. Step 3: Cross multiply
    5,906.72x = 8,865.56 × 2,987.12
  4. Step 4: Simplify right side
    5,906.72x = 26,482,454.73
  5. Step 5: Solve for x
    x = 26,482,454.73/5,906.72
  6. Step 6: Final answer
    x = 4,483.45

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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.