Home / 2,712.60-3,740.28-2,213.70

Finding the Fourth Proportional to 2,712.60, 3,740.28 and 2,213.70

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Solution

The fourth proportional to 2,712.60, 3,740.28 and 2,213.70 is: 3,052.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,712.60 : 3,740.28 = 2,213.70 : x
  2. Step 2: Convert to fraction form
    2,712.60/3,740.28 = 2,213.70/x
  3. Step 3: Cross multiply
    2,712.60x = 3,740.28 × 2,213.70
  4. Step 4: Simplify right side
    2,712.60x = 8,279,857.84
  5. Step 5: Solve for x
    x = 8,279,857.84/2,712.60
  6. Step 6: Final answer
    x = 3,052.37

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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.