Home / 7,331.28-10,117.18-3,974.09

Finding the Fourth Proportional to 7,331.28, 10,117.18 and 3,974.09

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Solution

The fourth proportional to 7,331.28, 10,117.18 and 3,974.09 is: 5,484.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,331.28 : 10,117.18 = 3,974.09 : x
  2. Step 2: Convert to fraction form
    7,331.28/10,117.18 = 3,974.09/x
  3. Step 3: Cross multiply
    7,331.28x = 10,117.18 × 3,974.09
  4. Step 4: Simplify right side
    7,331.28x = 40,206,538.25
  5. Step 5: Solve for x
    x = 40,206,538.25/7,331.28
  6. Step 6: Final answer
    x = 5,484.25

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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.