Home / 5,631.68-7,767.96-3,391.22

Finding the Fourth Proportional to 5,631.68, 7,767.96 and 3,391.22

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Solution

The fourth proportional to 5,631.68, 7,767.96 and 3,391.22 is: 4,677.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,631.68 : 7,767.96 = 3,391.22 : x
  2. Step 2: Convert to fraction form
    5,631.68/7,767.96 = 3,391.22/x
  3. Step 3: Cross multiply
    5,631.68x = 7,767.96 × 3,391.22
  4. Step 4: Simplify right side
    5,631.68x = 26,342,861.31
  5. Step 5: Solve for x
    x = 26,342,861.31/5,631.68
  6. Step 6: Final answer
    x = 4,677.62

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.