Home / 6,619.68-9,931.05-2,922.96

Finding the Fourth Proportional to 6,619.68, 9,931.05 and 2,922.96

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Solution

The fourth proportional to 6,619.68, 9,931.05 and 2,922.96 is: 4,385.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,619.68 : 9,931.05 = 2,922.96 : x
  2. Step 2: Convert to fraction form
    6,619.68/9,931.05 = 2,922.96/x
  3. Step 3: Cross multiply
    6,619.68x = 9,931.05 × 2,922.96
  4. Step 4: Simplify right side
    6,619.68x = 29,028,061.91
  5. Step 5: Solve for x
    x = 29,028,061.91/6,619.68
  6. Step 6: Final answer
    x = 4,385.12

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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.