Home / 4,279.04-5,918.20-3,836.78

Finding the Fourth Proportional to 4,279.04, 5,918.20 and 3,836.78

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Solution

The fourth proportional to 4,279.04, 5,918.20 and 3,836.78 is: 5,306.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,279.04 : 5,918.20 = 3,836.78 : x
  2. Step 2: Convert to fraction form
    4,279.04/5,918.20 = 3,836.78/x
  3. Step 3: Cross multiply
    4,279.04x = 5,918.20 × 3,836.78
  4. Step 4: Simplify right side
    4,279.04x = 22,706,814.41
  5. Step 5: Solve for x
    x = 22,706,814.41/4,279.04
  6. Step 6: Final answer
    x = 5,306.52

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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.