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Finding the Fourth Proportional to 7,155.61, 9,882.82 and 4,883.05

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Solution

The fourth proportional to 7,155.61, 9,882.82 and 4,883.05 is: 6,744.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,155.61 : 9,882.82 = 4,883.05 : x
  2. Step 2: Convert to fraction form
    7,155.61/9,882.82 = 4,883.05/x
  3. Step 3: Cross multiply
    7,155.61x = 9,882.82 × 4,883.05
  4. Step 4: Simplify right side
    7,155.61x = 48,258,304.20
  5. Step 5: Solve for x
    x = 48,258,304.20/7,155.61
  6. Step 6: Final answer
    x = 6,744.12

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.