Home / 4,920.14-7,380.19-1,222.35

Finding the Fourth Proportional to 4,920.14, 7,380.19 and 1,222.35

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Solution

The fourth proportional to 4,920.14, 7,380.19 and 1,222.35 is: 1,833.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,920.14 : 7,380.19 = 1,222.35 : x
  2. Step 2: Convert to fraction form
    4,920.14/7,380.19 = 1,222.35/x
  3. Step 3: Cross multiply
    4,920.14x = 7,380.19 × 1,222.35
  4. Step 4: Simplify right side
    4,920.14x = 9,021,158.59
  5. Step 5: Solve for x
    x = 9,021,158.59/4,920.14
  6. Step 6: Final answer
    x = 1,833.52

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Similar ratio
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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.