Home / 7,543.74-11,311.29-2,921.34

Finding the Fourth Proportional to 7,543.74, 11,311.29 and 2,921.34

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Solution

The fourth proportional to 7,543.74, 11,311.29 and 2,921.34 is: 4,380.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,543.74 : 11,311.29 = 2,921.34 : x
  2. Step 2: Convert to fraction form
    7,543.74/11,311.29 = 2,921.34/x
  3. Step 3: Cross multiply
    7,543.74x = 11,311.29 × 2,921.34
  4. Step 4: Simplify right side
    7,543.74x = 33,044,123.93
  5. Step 5: Solve for x
    x = 33,044,123.93/7,543.74
  6. Step 6: Final answer
    x = 4,380.34

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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.