Home / 4,221.25-6,331.88-1,143.25

Finding the Fourth Proportional to 4,221.25, 6,331.88 and 1,143.25

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Solution

The fourth proportional to 4,221.25, 6,331.88 and 1,143.25 is: 1,714.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,221.25 : 6,331.88 = 1,143.25 : x
  2. Step 2: Convert to fraction form
    4,221.25/6,331.88 = 1,143.25/x
  3. Step 3: Cross multiply
    4,221.25x = 6,331.88 × 1,143.25
  4. Step 4: Simplify right side
    4,221.25x = 7,238,921.81
  5. Step 5: Solve for x
    x = 7,238,921.81/4,221.25
  6. Step 6: Final answer
    x = 1,714.88

Related Problems

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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 (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.