Home / 8,722.35-13,082.81-2,877.39

Finding the Fourth Proportional to 8,722.35, 13,082.81 and 2,877.39

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Solution

The fourth proportional to 8,722.35, 13,082.81 and 2,877.39 is: 4,315.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,722.35 : 13,082.81 = 2,877.39 : x
  2. Step 2: Convert to fraction form
    8,722.35/13,082.81 = 2,877.39/x
  3. Step 3: Cross multiply
    8,722.35x = 13,082.81 × 2,877.39
  4. Step 4: Simplify right side
    8,722.35x = 37,644,332.28
  5. Step 5: Solve for x
    x = 37,644,332.28/8,722.35
  6. Step 6: Final answer
    x = 4,315.85

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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.