Home / 5,306.81-7,321.25-3,207.29

Finding the Fourth Proportional to 5,306.81, 7,321.25 and 3,207.29

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Solution

The fourth proportional to 5,306.81, 7,321.25 and 3,207.29 is: 4,424.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,306.81 : 7,321.25 = 3,207.29 : x
  2. Step 2: Convert to fraction form
    5,306.81/7,321.25 = 3,207.29/x
  3. Step 3: Cross multiply
    5,306.81x = 7,321.25 × 3,207.29
  4. Step 4: Simplify right side
    5,306.81x = 23,481,343.32
  5. Step 5: Solve for x
    x = 23,481,343.32/5,306.81
  6. Step 6: Final answer
    x = 4,424.76

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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.