Home / 5,478.28-7,550.82-4,151.56

Finding the Fourth Proportional to 5,478.28, 7,550.82 and 4,151.56

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Solution

The fourth proportional to 5,478.28, 7,550.82 and 4,151.56 is: 5,722.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,478.28 : 7,550.82 = 4,151.56 : x
  2. Step 2: Convert to fraction form
    5,478.28/7,550.82 = 4,151.56/x
  3. Step 3: Cross multiply
    5,478.28x = 7,550.82 × 4,151.56
  4. Step 4: Simplify right side
    5,478.28x = 31,347,682.28
  5. Step 5: Solve for x
    x = 31,347,682.28/5,478.28
  6. Step 6: Final answer
    x = 5,722.18

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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.