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Finding the Fourth Proportional to 8,960.90, 13,437.98 and 2,719.08

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Solution

The fourth proportional to 8,960.90, 13,437.98 and 2,719.08 is: 4,077.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,960.90 : 13,437.98 = 2,719.08 : x
  2. Step 2: Convert to fraction form
    8,960.90/13,437.98 = 2,719.08/x
  3. Step 3: Cross multiply
    8,960.90x = 13,437.98 × 2,719.08
  4. Step 4: Simplify right side
    8,960.90x = 36,538,942.66
  5. Step 5: Solve for x
    x = 36,538,942.66/8,960.90
  6. Step 6: Final answer
    x = 4,077.60

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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.