Home / 3,212.16-4,426.56-2,279.04

Finding the Fourth Proportional to 3,212.16, 4,426.56 and 2,279.04

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Solution

The fourth proportional to 3,212.16, 4,426.56 and 2,279.04 is: 3,140.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,212.16 : 4,426.56 = 2,279.04 : x
  2. Step 2: Convert to fraction form
    3,212.16/4,426.56 = 2,279.04/x
  3. Step 3: Cross multiply
    3,212.16x = 4,426.56 × 2,279.04
  4. Step 4: Simplify right side
    3,212.16x = 10,088,307.30
  5. Step 5: Solve for x
    x = 10,088,307.30/3,212.16
  6. Step 6: Final answer
    x = 3,140.66

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Half scale
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Double scale
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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.