Home / 5,164.20-7,126.32-2,806.20

Finding the Fourth Proportional to 5,164.20, 7,126.32 and 2,806.20

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Solution

The fourth proportional to 5,164.20, 7,126.32 and 2,806.20 is: 3,872.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,164.20 : 7,126.32 = 2,806.20 : x
  2. Step 2: Convert to fraction form
    5,164.20/7,126.32 = 2,806.20/x
  3. Step 3: Cross multiply
    5,164.20x = 7,126.32 × 2,806.20
  4. Step 4: Simplify right side
    5,164.20x = 19,997,879.18
  5. Step 5: Solve for x
    x = 19,997,879.18/5,164.20
  6. Step 6: Final answer
    x = 3,872.41

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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.