Home / 3,087.03-4,257.43-2,144.40

Finding the Fourth Proportional to 3,087.03, 4,257.43 and 2,144.40

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Solution

The fourth proportional to 3,087.03, 4,257.43 and 2,144.40 is: 2,957.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,087.03 : 4,257.43 = 2,144.40 : x
  2. Step 2: Convert to fraction form
    3,087.03/4,257.43 = 2,144.40/x
  3. Step 3: Cross multiply
    3,087.03x = 4,257.43 × 2,144.40
  4. Step 4: Simplify right side
    3,087.03x = 9,129,611.57
  5. Step 5: Solve for x
    x = 9,129,611.57/3,087.03
  6. Step 6: Final answer
    x = 2,957.41

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Half scale
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Double scale
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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.