Home / 7,001.20-10,491.90-3,882.58

Finding the Fourth Proportional to 7,001.20, 10,491.90 and 3,882.58

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Solution

The fourth proportional to 7,001.20, 10,491.90 and 3,882.58 is: 5,818.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,001.20 : 10,491.90 = 3,882.58 : x
  2. Step 2: Convert to fraction form
    7,001.20/10,491.90 = 3,882.58/x
  3. Step 3: Cross multiply
    7,001.20x = 10,491.90 × 3,882.58
  4. Step 4: Simplify right side
    7,001.20x = 40,735,641.10
  5. Step 5: Solve for x
    x = 40,735,641.10/7,001.20
  6. Step 6: Final answer
    x = 5,818.38

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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.