Home / 8,700.28-13,052.05-2,857.22

Finding the Fourth Proportional to 8,700.28, 13,052.05 and 2,857.22

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Solution

The fourth proportional to 8,700.28, 13,052.05 and 2,857.22 is: 4,286.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,700.28 : 13,052.05 = 2,857.22 : x
  2. Step 2: Convert to fraction form
    8,700.28/13,052.05 = 2,857.22/x
  3. Step 3: Cross multiply
    8,700.28x = 13,052.05 × 2,857.22
  4. Step 4: Simplify right side
    8,700.28x = 37,292,578.30
  5. Step 5: Solve for x
    x = 37,292,578.30/8,700.28
  6. Step 6: Final answer
    x = 4,286.37

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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.