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Finding the Fourth Proportional to 6,387.98, 9,581.16 and 4,746.92

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Solution

The fourth proportional to 6,387.98, 9,581.16 and 4,746.92 is: 7,119.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,387.98 : 9,581.16 = 4,746.92 : x
  2. Step 2: Convert to fraction form
    6,387.98/9,581.16 = 4,746.92/x
  3. Step 3: Cross multiply
    6,387.98x = 9,581.16 × 4,746.92
  4. Step 4: Simplify right side
    6,387.98x = 45,481,000.03
  5. Step 5: Solve for x
    x = 45,481,000.03/6,387.98
  6. Step 6: Final answer
    x = 7,119.78

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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.