Home / 4,765.91-7,148.64-1,478.57

Finding the Fourth Proportional to 4,765.91, 7,148.64 and 1,478.57

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Solution

The fourth proportional to 4,765.91, 7,148.64 and 1,478.57 is: 2,217.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,765.91 : 7,148.64 = 1,478.57 : x
  2. Step 2: Convert to fraction form
    4,765.91/7,148.64 = 1,478.57/x
  3. Step 3: Cross multiply
    4,765.91x = 7,148.64 × 1,478.57
  4. Step 4: Simplify right side
    4,765.91x = 10,569,764.64
  5. Step 5: Solve for x
    x = 10,569,764.64/4,765.91
  6. Step 6: Final answer
    x = 2,217.79

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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.