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Finding the Fourth Proportional to 5,155.14, 7,114.14 and 2,917.02

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Solution

The fourth proportional to 5,155.14, 7,114.14 and 2,917.02 is: 4,025.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,155.14 : 7,114.14 = 2,917.02 : x
  2. Step 2: Convert to fraction form
    5,155.14/7,114.14 = 2,917.02/x
  3. Step 3: Cross multiply
    5,155.14x = 7,114.14 × 2,917.02
  4. Step 4: Simplify right side
    5,155.14x = 20,752,088.66
  5. Step 5: Solve for x
    x = 20,752,088.66/5,155.14
  6. Step 6: Final answer
    x = 4,025.51

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1.5x scale

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.