Home / 7,434.20-11,145.90-3,049.40

Finding the Fourth Proportional to 7,434.20, 11,145.90 and 3,049.40

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Solution

The fourth proportional to 7,434.20, 11,145.90 and 3,049.40 is: 4,571.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,434.20 : 11,145.90 = 3,049.40 : x
  2. Step 2: Convert to fraction form
    7,434.20/11,145.90 = 3,049.40/x
  3. Step 3: Cross multiply
    7,434.20x = 11,145.90 × 3,049.40
  4. Step 4: Simplify right side
    7,434.20x = 33,988,307.46
  5. Step 5: Solve for x
    x = 33,988,307.46/7,434.20
  6. Step 6: Final answer
    x = 4,571.88

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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.