Home / 5,189.28-7,156.80-4,670.88

Finding the Fourth Proportional to 5,189.28, 7,156.80 and 4,670.88

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Solution

The fourth proportional to 5,189.28, 7,156.80 and 4,670.88 is: 6,441.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,189.28 : 7,156.80 = 4,670.88 : x
  2. Step 2: Convert to fraction form
    5,189.28/7,156.80 = 4,670.88/x
  3. Step 3: Cross multiply
    5,189.28x = 7,156.80 × 4,670.88
  4. Step 4: Simplify right side
    5,189.28x = 33,428,553.98
  5. Step 5: Solve for x
    x = 33,428,553.98/5,189.28
  6. Step 6: Final answer
    x = 6,441.85

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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.