Home / 5,164.24-7,126.68-2,806.42

Finding the Fourth Proportional to 5,164.24, 7,126.68 and 2,806.42

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Solution

The fourth proportional to 5,164.24, 7,126.68 and 2,806.42 is: 3,872.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,164.24 : 7,126.68 = 2,806.42 : x
  2. Step 2: Convert to fraction form
    5,164.24/7,126.68 = 2,806.42/x
  3. Step 3: Cross multiply
    5,164.24x = 7,126.68 × 2,806.42
  4. Step 4: Simplify right side
    5,164.24x = 20,000,457.29
  5. Step 5: Solve for x
    x = 20,000,457.29/5,164.24
  6. Step 6: Final answer
    x = 3,872.88

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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.