Home / 8,780.08-13,171.38-2,540.14

Finding the Fourth Proportional to 8,780.08, 13,171.38 and 2,540.14

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Solution

The fourth proportional to 8,780.08, 13,171.38 and 2,540.14 is: 3,810.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,780.08 : 13,171.38 = 2,540.14 : x
  2. Step 2: Convert to fraction form
    8,780.08/13,171.38 = 2,540.14/x
  3. Step 3: Cross multiply
    8,780.08x = 13,171.38 × 2,540.14
  4. Step 4: Simplify right side
    8,780.08x = 33,457,116.26
  5. Step 5: Solve for x
    x = 33,457,116.26/8,780.08
  6. Step 6: Final answer
    x = 3,810.57

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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.