Home / 7,391.42-11,078.76-2,459.90

Finding the Fourth Proportional to 7,391.42, 11,078.76 and 2,459.90

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Solution

The fourth proportional to 7,391.42, 11,078.76 and 2,459.90 is: 3,687.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,391.42 : 11,078.76 = 2,459.90 : x
  2. Step 2: Convert to fraction form
    7,391.42/11,078.76 = 2,459.90/x
  3. Step 3: Cross multiply
    7,391.42x = 11,078.76 × 2,459.90
  4. Step 4: Simplify right side
    7,391.42x = 27,252,641.72
  5. Step 5: Solve for x
    x = 27,252,641.72/7,391.42
  6. Step 6: Final answer
    x = 3,687.06

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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.