Home / 6,872.04-9,481.32-4,039.20

Finding the Fourth Proportional to 6,872.04, 9,481.32 and 4,039.20

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Solution

The fourth proportional to 6,872.04, 9,481.32 and 4,039.20 is: 5,572.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,872.04 : 9,481.32 = 4,039.20 : x
  2. Step 2: Convert to fraction form
    6,872.04/9,481.32 = 4,039.20/x
  3. Step 3: Cross multiply
    6,872.04x = 9,481.32 × 4,039.20
  4. Step 4: Simplify right side
    6,872.04x = 38,296,947.74
  5. Step 5: Solve for x
    x = 38,296,947.74/6,872.04
  6. Step 6: Final answer
    x = 5,572.86

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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.