Home / 5,530.70-7,631.13-3,378.38

Finding the Fourth Proportional to 5,530.70, 7,631.13 and 3,378.38

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Solution

The fourth proportional to 5,530.70, 7,631.13 and 3,378.38 is: 4,661.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,530.70 : 7,631.13 = 3,378.38 : x
  2. Step 2: Convert to fraction form
    5,530.70/7,631.13 = 3,378.38/x
  3. Step 3: Cross multiply
    5,530.70x = 7,631.13 × 3,378.38
  4. Step 4: Simplify right side
    5,530.70x = 25,780,856.97
  5. Step 5: Solve for x
    x = 25,780,856.97/5,530.70
  6. Step 6: Final answer
    x = 4,661.41

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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.