Home / 5,426.52-8,139.80-1,322.52

Finding the Fourth Proportional to 5,426.52, 8,139.80 and 1,322.52

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Solution

The fourth proportional to 5,426.52, 8,139.80 and 1,322.52 is: 1,983.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,426.52 : 8,139.80 = 1,322.52 : x
  2. Step 2: Convert to fraction form
    5,426.52/8,139.80 = 1,322.52/x
  3. Step 3: Cross multiply
    5,426.52x = 8,139.80 × 1,322.52
  4. Step 4: Simplify right side
    5,426.52x = 10,765,048.30
  5. Step 5: Solve for x
    x = 10,765,048.30/5,426.52
  6. Step 6: Final answer
    x = 1,983.78

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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.