Home / 7,348.67-10,141.28-3,991.55

Finding the Fourth Proportional to 7,348.67, 10,141.28 and 3,991.55

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Solution

The fourth proportional to 7,348.67, 10,141.28 and 3,991.55 is: 5,508.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,348.67 : 10,141.28 = 3,991.55 : x
  2. Step 2: Convert to fraction form
    7,348.67/10,141.28 = 3,991.55/x
  3. Step 3: Cross multiply
    7,348.67x = 10,141.28 × 3,991.55
  4. Step 4: Simplify right side
    7,348.67x = 40,479,355.52
  5. Step 5: Solve for x
    x = 40,479,355.52/7,348.67
  6. Step 6: Final answer
    x = 5,508.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.