Home / 8,117.64-12,177.90-2,922.84

Finding the Fourth Proportional to 8,117.64, 12,177.90 and 2,922.84

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Solution

The fourth proportional to 8,117.64, 12,177.90 and 2,922.84 is: 4,384.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,117.64 : 12,177.90 = 2,922.84 : x
  2. Step 2: Convert to fraction form
    8,117.64/12,177.90 = 2,922.84/x
  3. Step 3: Cross multiply
    8,117.64x = 12,177.90 × 2,922.84
  4. Step 4: Simplify right side
    8,117.64x = 35,594,053.24
  5. Step 5: Solve for x
    x = 35,594,053.24/8,117.64
  6. Step 6: Final answer
    x = 4,384.78

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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.