Home / 2,987.57-4,481.36-1,343.23

Finding the Fourth Proportional to 2,987.57, 4,481.36 and 1,343.23

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Solution

The fourth proportional to 2,987.57, 4,481.36 and 1,343.23 is: 2,014.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,987.57 : 4,481.36 = 1,343.23 : x
  2. Step 2: Convert to fraction form
    2,987.57/4,481.36 = 1,343.23/x
  3. Step 3: Cross multiply
    2,987.57x = 4,481.36 × 1,343.23
  4. Step 4: Simplify right side
    2,987.57x = 6,019,497.19
  5. Step 5: Solve for x
    x = 6,019,497.19/2,987.57
  6. Step 6: Final answer
    x = 2,014.85

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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.