Home / 8,731.74-13,097.37-2,158.02

Finding the Fourth Proportional to 8,731.74, 13,097.37 and 2,158.02

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Solution

The fourth proportional to 8,731.74, 13,097.37 and 2,158.02 is: 3,236.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,731.74 : 13,097.37 = 2,158.02 : x
  2. Step 2: Convert to fraction form
    8,731.74/13,097.37 = 2,158.02/x
  3. Step 3: Cross multiply
    8,731.74x = 13,097.37 × 2,158.02
  4. Step 4: Simplify right side
    8,731.74x = 28,264,386.41
  5. Step 5: Solve for x
    x = 28,264,386.41/8,731.74
  6. Step 6: Final answer
    x = 3,236.97

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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.