Home / 5,530.28-7,631.14-3,173.20

Finding the Fourth Proportional to 5,530.28, 7,631.14 and 3,173.20

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Solution

The fourth proportional to 5,530.28, 7,631.14 and 3,173.20 is: 4,378.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,530.28 : 7,631.14 = 3,173.20 : x
  2. Step 2: Convert to fraction form
    5,530.28/7,631.14 = 3,173.20/x
  3. Step 3: Cross multiply
    5,530.28x = 7,631.14 × 3,173.20
  4. Step 4: Simplify right side
    5,530.28x = 24,215,133.45
  5. Step 5: Solve for x
    x = 24,215,133.45/5,530.28
  6. Step 6: Final answer
    x = 4,378.65

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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.