Home / 5,274.74-7,279.13-2,884.70

Finding the Fourth Proportional to 5,274.74, 7,279.13 and 2,884.70

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Solution

The fourth proportional to 5,274.74, 7,279.13 and 2,884.70 is: 3,980.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,274.74 : 7,279.13 = 2,884.70 : x
  2. Step 2: Convert to fraction form
    5,274.74/7,279.13 = 2,884.70/x
  3. Step 3: Cross multiply
    5,274.74x = 7,279.13 × 2,884.70
  4. Step 4: Simplify right side
    5,274.74x = 20,998,131.72
  5. Step 5: Solve for x
    x = 20,998,131.72/5,274.74
  6. Step 6: Final answer
    x = 3,980.88

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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.