Home / 2,815.92-4,222.60-966.52

Finding the Fourth Proportional to 2,815.92, 4,222.60 and 966.52

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Solution

The fourth proportional to 2,815.92, 4,222.60 and 966.52 is: 1,449.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,815.92 : 4,222.60 = 966.52 : x
  2. Step 2: Convert to fraction form
    2,815.92/4,222.60 = 966.52/x
  3. Step 3: Cross multiply
    2,815.92x = 4,222.60 × 966.52
  4. Step 4: Simplify right side
    2,815.92x = 4,081,227.35
  5. Step 5: Solve for x
    x = 4,081,227.35/2,815.92
  6. Step 6: Final answer
    x = 1,449.34

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1.5x scale

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.