Home / 8,731.20-13,094.92-2,886.48

Finding the Fourth Proportional to 8,731.20, 13,094.92 and 2,886.48

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Solution

The fourth proportional to 8,731.20, 13,094.92 and 2,886.48 is: 4,329.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,731.20 : 13,094.92 = 2,886.48 : x
  2. Step 2: Convert to fraction form
    8,731.20/13,094.92 = 2,886.48/x
  3. Step 3: Cross multiply
    8,731.20x = 13,094.92 × 2,886.48
  4. Step 4: Simplify right side
    8,731.20x = 37,798,224.68
  5. Step 5: Solve for x
    x = 37,798,224.68/8,731.20
  6. Step 6: Final answer
    x = 4,329.10

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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.