Home / 3,187.35-4,781.07-1,213.01

Finding the Fourth Proportional to 3,187.35, 4,781.07 and 1,213.01

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Solution

The fourth proportional to 3,187.35, 4,781.07 and 1,213.01 is: 1,819.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,187.35 : 4,781.07 = 1,213.01 : x
  2. Step 2: Convert to fraction form
    3,187.35/4,781.07 = 1,213.01/x
  3. Step 3: Cross multiply
    3,187.35x = 4,781.07 × 1,213.01
  4. Step 4: Simplify right side
    3,187.35x = 5,799,461.82
  5. Step 5: Solve for x
    x = 5,799,461.82/3,187.35
  6. Step 6: Final answer
    x = 1,819.52

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.