Home / 5,236.88-7,227.08-2,879.20

Finding the Fourth Proportional to 5,236.88, 7,227.08 and 2,879.20

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Solution

The fourth proportional to 5,236.88, 7,227.08 and 2,879.20 is: 3,973.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,236.88 : 7,227.08 = 2,879.20 : x
  2. Step 2: Convert to fraction form
    5,236.88/7,227.08 = 2,879.20/x
  3. Step 3: Cross multiply
    5,236.88x = 7,227.08 × 2,879.20
  4. Step 4: Simplify right side
    5,236.88x = 20,808,208.74
  5. Step 5: Solve for x
    x = 20,808,208.74/5,236.88
  6. Step 6: Final answer
    x = 3,973.40

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Half scale
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Double scale
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Similar ratio
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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.