Home / 5,917.30-8,865.15-4,815.70

Finding the Fourth Proportional to 5,917.30, 8,865.15 and 4,815.70

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Solution

The fourth proportional to 5,917.30, 8,865.15 and 4,815.70 is: 7,214.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,917.30 : 8,865.15 = 4,815.70 : x
  2. Step 2: Convert to fraction form
    5,917.30/8,865.15 = 4,815.70/x
  3. Step 3: Cross multiply
    5,917.30x = 8,865.15 × 4,815.70
  4. Step 4: Simplify right side
    5,917.30x = 42,691,902.86
  5. Step 5: Solve for x
    x = 42,691,902.86/5,917.30
  6. Step 6: Final answer
    x = 7,214.76

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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.