Home / 6,610.14-9,121.95-3,958.20

Finding the Fourth Proportional to 6,610.14, 9,121.95 and 3,958.20

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Solution

The fourth proportional to 6,610.14, 9,121.95 and 3,958.20 is: 5,462.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,610.14 : 9,121.95 = 3,958.20 : x
  2. Step 2: Convert to fraction form
    6,610.14/9,121.95 = 3,958.20/x
  3. Step 3: Cross multiply
    6,610.14x = 9,121.95 × 3,958.20
  4. Step 4: Simplify right side
    6,610.14x = 36,106,502.49
  5. Step 5: Solve for x
    x = 36,106,502.49/6,610.14
  6. Step 6: Final answer
    x = 5,462.29

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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.