Home / 7,431.53-11,141.15-3,480.84

Finding the Fourth Proportional to 7,431.53, 11,141.15 and 3,480.84

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Solution

The fourth proportional to 7,431.53, 11,141.15 and 3,480.84 is: 5,218.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,431.53 : 11,141.15 = 3,480.84 : x
  2. Step 2: Convert to fraction form
    7,431.53/11,141.15 = 3,480.84/x
  3. Step 3: Cross multiply
    7,431.53x = 11,141.15 × 3,480.84
  4. Step 4: Simplify right side
    7,431.53x = 38,780,560.57
  5. Step 5: Solve for x
    x = 38,780,560.57/7,431.53
  6. Step 6: Final answer
    x = 5,218.38

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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.