Home / 5,439.38-8,159.06-1,335.38

Finding the Fourth Proportional to 5,439.38, 8,159.06 and 1,335.38

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Solution

The fourth proportional to 5,439.38, 8,159.06 and 1,335.38 is: 2,003.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,439.38 : 8,159.06 = 1,335.38 : x
  2. Step 2: Convert to fraction form
    5,439.38/8,159.06 = 1,335.38/x
  3. Step 3: Cross multiply
    5,439.38x = 8,159.06 × 1,335.38
  4. Step 4: Simplify right side
    5,439.38x = 10,895,408.09
  5. Step 5: Solve for x
    x = 10,895,408.09/5,439.38
  6. Step 6: Final answer
    x = 2,003.06

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1.5x scale

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.