Home / 4,910.12-7,365.20-1,988.48

Finding the Fourth Proportional to 4,910.12, 7,365.20 and 1,988.48

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Solution

The fourth proportional to 4,910.12, 7,365.20 and 1,988.48 is: 2,982.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,910.12 : 7,365.20 = 1,988.48 : x
  2. Step 2: Convert to fraction form
    4,910.12/7,365.20 = 1,988.48/x
  3. Step 3: Cross multiply
    4,910.12x = 7,365.20 × 1,988.48
  4. Step 4: Simplify right side
    4,910.12x = 14,645,552.90
  5. Step 5: Solve for x
    x = 14,645,552.90/4,910.12
  6. Step 6: Final answer
    x = 2,982.73

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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.