Home / 2,999.28-4,497.20-918.73

Finding the Fourth Proportional to 2,999.28, 4,497.20 and 918.73

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Solution

The fourth proportional to 2,999.28, 4,497.20 and 918.73 is: 1,377.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,999.28 : 4,497.20 = 918.73 : x
  2. Step 2: Convert to fraction form
    2,999.28/4,497.20 = 918.73/x
  3. Step 3: Cross multiply
    2,999.28x = 4,497.20 × 918.73
  4. Step 4: Simplify right side
    2,999.28x = 4,131,712.56
  5. Step 5: Solve for x
    x = 4,131,712.56/2,999.28
  6. Step 6: Final answer
    x = 1,377.57

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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.