Home / 4,488.90-6,731.49-2,148.54

Finding the Fourth Proportional to 4,488.90, 6,731.49 and 2,148.54

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Solution

The fourth proportional to 4,488.90, 6,731.49 and 2,148.54 is: 3,221.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,488.90 : 6,731.49 = 2,148.54 : x
  2. Step 2: Convert to fraction form
    4,488.90/6,731.49 = 2,148.54/x
  3. Step 3: Cross multiply
    4,488.90x = 6,731.49 × 2,148.54
  4. Step 4: Simplify right side
    4,488.90x = 14,462,875.52
  5. Step 5: Solve for x
    x = 14,462,875.52/4,488.90
  6. Step 6: Final answer
    x = 3,221.92

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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.