Home / 5,418.48-7,472.88-4,162.56

Finding the Fourth Proportional to 5,418.48, 7,472.88 and 4,162.56

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Solution

The fourth proportional to 5,418.48, 7,472.88 and 4,162.56 is: 5,740.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,418.48 : 7,472.88 = 4,162.56 : x
  2. Step 2: Convert to fraction form
    5,418.48/7,472.88 = 4,162.56/x
  3. Step 3: Cross multiply
    5,418.48x = 7,472.88 × 4,162.56
  4. Step 4: Simplify right side
    5,418.48x = 31,106,311.37
  5. Step 5: Solve for x
    x = 31,106,311.37/5,418.48
  6. Step 6: Final answer
    x = 5,740.78

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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.