Home / 4,439.31-6,658.81-2,987.69

Finding the Fourth Proportional to 4,439.31, 6,658.81 and 2,987.69

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Solution

The fourth proportional to 4,439.31, 6,658.81 and 2,987.69 is: 4,481.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,439.31 : 6,658.81 = 2,987.69 : x
  2. Step 2: Convert to fraction form
    4,439.31/6,658.81 = 2,987.69/x
  3. Step 3: Cross multiply
    4,439.31x = 6,658.81 × 2,987.69
  4. Step 4: Simplify right side
    4,439.31x = 19,894,419.29
  5. Step 5: Solve for x
    x = 19,894,419.29/4,439.31
  6. Step 6: Final answer
    x = 4,481.43

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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.