Home / 7,431.28-11,144.59-2,686.82

Finding the Fourth Proportional to 7,431.28, 11,144.59 and 2,686.82

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Solution

The fourth proportional to 7,431.28, 11,144.59 and 2,686.82 is: 4,029.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,431.28 : 11,144.59 = 2,686.82 : x
  2. Step 2: Convert to fraction form
    7,431.28/11,144.59 = 2,686.82/x
  3. Step 3: Cross multiply
    7,431.28x = 11,144.59 × 2,686.82
  4. Step 4: Simplify right side
    7,431.28x = 29,943,507.30
  5. Step 5: Solve for x
    x = 29,943,507.30/7,431.28
  6. Step 6: Final answer
    x = 4,029.39

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Double scale
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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.