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Finding the Fourth Proportional to 8,407.88, 12,610.88 and 2,564.52

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Solution

The fourth proportional to 8,407.88, 12,610.88 and 2,564.52 is: 3,846.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,407.88 : 12,610.88 = 2,564.52 : x
  2. Step 2: Convert to fraction form
    8,407.88/12,610.88 = 2,564.52/x
  3. Step 3: Cross multiply
    8,407.88x = 12,610.88 × 2,564.52
  4. Step 4: Simplify right side
    8,407.88x = 32,340,853.98
  5. Step 5: Solve for x
    x = 32,340,853.98/8,407.88
  6. Step 6: Final answer
    x = 3,846.49

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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.