Home / 5,245.56-7,238.70-3,121.08

Finding the Fourth Proportional to 5,245.56, 7,238.70 and 3,121.08

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Solution

The fourth proportional to 5,245.56, 7,238.70 and 3,121.08 is: 4,306.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,245.56 : 7,238.70 = 3,121.08 : x
  2. Step 2: Convert to fraction form
    5,245.56/7,238.70 = 3,121.08/x
  3. Step 3: Cross multiply
    5,245.56x = 7,238.70 × 3,121.08
  4. Step 4: Simplify right side
    5,245.56x = 22,592,561.80
  5. Step 5: Solve for x
    x = 22,592,561.80/5,245.56
  6. Step 6: Final answer
    x = 4,306.99

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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.