Home / 3,951.04-5,918.88-2,220.80

Finding the Fourth Proportional to 3,951.04, 5,918.88 and 2,220.80

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Solution

The fourth proportional to 3,951.04, 5,918.88 and 2,220.80 is: 3,326.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,951.04 : 5,918.88 = 2,220.80 : x
  2. Step 2: Convert to fraction form
    3,951.04/5,918.88 = 2,220.80/x
  3. Step 3: Cross multiply
    3,951.04x = 5,918.88 × 2,220.80
  4. Step 4: Simplify right side
    3,951.04x = 13,144,648.70
  5. Step 5: Solve for x
    x = 13,144,648.70/3,951.04
  6. Step 6: Final answer
    x = 3,326.88

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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.