Home / 7,372.20-11,057.84-2,990.02

Finding the Fourth Proportional to 7,372.20, 11,057.84 and 2,990.02

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Solution

The fourth proportional to 7,372.20, 11,057.84 and 2,990.02 is: 4,484.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,372.20 : 11,057.84 = 2,990.02 : x
  2. Step 2: Convert to fraction form
    7,372.20/11,057.84 = 2,990.02/x
  3. Step 3: Cross multiply
    7,372.20x = 11,057.84 × 2,990.02
  4. Step 4: Simplify right side
    7,372.20x = 33,063,162.76
  5. Step 5: Solve for x
    x = 33,063,162.76/7,372.20
  6. Step 6: Final answer
    x = 4,484.84

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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.