Home / 5,164.30-7,126.76-2,806.44

Finding the Fourth Proportional to 5,164.30, 7,126.76 and 2,806.44

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Solution

The fourth proportional to 5,164.30, 7,126.76 and 2,806.44 is: 3,872.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,164.30 : 7,126.76 = 2,806.44 : x
  2. Step 2: Convert to fraction form
    5,164.30/7,126.76 = 2,806.44/x
  3. Step 3: Cross multiply
    5,164.30x = 7,126.76 × 2,806.44
  4. Step 4: Simplify right side
    5,164.30x = 20,000,810.30
  5. Step 5: Solve for x
    x = 20,000,810.30/5,164.30
  6. Step 6: Final answer
    x = 3,872.90

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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.