Home / 5,195.80-7,785.15-3,000.70

Finding the Fourth Proportional to 5,195.80, 7,785.15 and 3,000.70

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Solution

The fourth proportional to 5,195.80, 7,785.15 and 3,000.70 is: 4,496.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,195.80 : 7,785.15 = 3,000.70 : x
  2. Step 2: Convert to fraction form
    5,195.80/7,785.15 = 3,000.70/x
  3. Step 3: Cross multiply
    5,195.80x = 7,785.15 × 3,000.70
  4. Step 4: Simplify right side
    5,195.80x = 23,360,899.61
  5. Step 5: Solve for x
    x = 23,360,899.61/5,195.80
  6. Step 6: Final answer
    x = 4,496.11

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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.