Home / 3,114.38-4,671.60-1,815.02

Finding the Fourth Proportional to 3,114.38, 4,671.60 and 1,815.02

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Solution

The fourth proportional to 3,114.38, 4,671.60 and 1,815.02 is: 2,722.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,114.38 : 4,671.60 = 1,815.02 : x
  2. Step 2: Convert to fraction form
    3,114.38/4,671.60 = 1,815.02/x
  3. Step 3: Cross multiply
    3,114.38x = 4,671.60 × 1,815.02
  4. Step 4: Simplify right side
    3,114.38x = 8,479,047.43
  5. Step 5: Solve for x
    x = 8,479,047.43/3,114.38
  6. Step 6: Final answer
    x = 2,722.55

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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.