Home / 8,702.38-13,055.01-2,857.69

Finding the Fourth Proportional to 8,702.38, 13,055.01 and 2,857.69

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Solution

The fourth proportional to 8,702.38, 13,055.01 and 2,857.69 is: 4,287.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,702.38 : 13,055.01 = 2,857.69 : x
  2. Step 2: Convert to fraction form
    8,702.38/13,055.01 = 2,857.69/x
  3. Step 3: Cross multiply
    8,702.38x = 13,055.01 × 2,857.69
  4. Step 4: Simplify right side
    8,702.38x = 37,307,171.53
  5. Step 5: Solve for x
    x = 37,307,171.53/8,702.38
  6. Step 6: Final answer
    x = 4,287.01

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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.