Home / 5,155.23-7,114.11-2,917.02

Finding the Fourth Proportional to 5,155.23, 7,114.11 and 2,917.02

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Solution

The fourth proportional to 5,155.23, 7,114.11 and 2,917.02 is: 4,025.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,155.23 : 7,114.11 = 2,917.02 : x
  2. Step 2: Convert to fraction form
    5,155.23/7,114.11 = 2,917.02/x
  3. Step 3: Cross multiply
    5,155.23x = 7,114.11 × 2,917.02
  4. Step 4: Simplify right side
    5,155.23x = 20,752,001.15
  5. Step 5: Solve for x
    x = 20,752,001.15/5,155.23
  6. Step 6: Final answer
    x = 4,025.43

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.