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Finding the Fourth Proportional to 6,437.80, 8,882.22 and 4,681.72

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Solution

The fourth proportional to 6,437.80, 8,882.22 and 4,681.72 is: 6,459.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,437.80 : 8,882.22 = 4,681.72 : x
  2. Step 2: Convert to fraction form
    6,437.80/8,882.22 = 4,681.72/x
  3. Step 3: Cross multiply
    6,437.80x = 8,882.22 × 4,681.72
  4. Step 4: Simplify right side
    6,437.80x = 41,584,067.02
  5. Step 5: Solve for x
    x = 41,584,067.02/6,437.80
  6. Step 6: Final answer
    x = 6,459.36

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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.