Home / 4,220.25-6,330.38-1,142.25

Finding the Fourth Proportional to 4,220.25, 6,330.38 and 1,142.25

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Solution

The fourth proportional to 4,220.25, 6,330.38 and 1,142.25 is: 1,713.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,220.25 : 6,330.38 = 1,142.25 : x
  2. Step 2: Convert to fraction form
    4,220.25/6,330.38 = 1,142.25/x
  3. Step 3: Cross multiply
    4,220.25x = 6,330.38 × 1,142.25
  4. Step 4: Simplify right side
    4,220.25x = 7,230,876.56
  5. Step 5: Solve for x
    x = 7,230,876.56/4,220.25
  6. Step 6: Final answer
    x = 1,713.38

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.