Home / 4,920.18-7,380.25-2,108.60

Finding the Fourth Proportional to 4,920.18, 7,380.25 and 2,108.60

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Solution

The fourth proportional to 4,920.18, 7,380.25 and 2,108.60 is: 3,162.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,920.18 : 7,380.25 = 2,108.60 : x
  2. Step 2: Convert to fraction form
    4,920.18/7,380.25 = 2,108.60/x
  3. Step 3: Cross multiply
    4,920.18x = 7,380.25 × 2,108.60
  4. Step 4: Simplify right side
    4,920.18x = 15,561,995.15
  5. Step 5: Solve for x
    x = 15,561,995.15/4,920.18
  6. Step 6: Final answer
    x = 3,162.89

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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.