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Finding the Fourth Proportional to 5,154.94, 7,114.17 and 2,917.05

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Solution

The fourth proportional to 5,154.94, 7,114.17 and 2,917.05 is: 4,025.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,154.94 : 7,114.17 = 2,917.05 : x
  2. Step 2: Convert to fraction form
    5,154.94/7,114.17 = 2,917.05/x
  3. Step 3: Cross multiply
    5,154.94x = 7,114.17 × 2,917.05
  4. Step 4: Simplify right side
    5,154.94x = 20,752,389.60
  5. Step 5: Solve for x
    x = 20,752,389.60/5,154.94
  6. Step 6: Final answer
    x = 4,025.73

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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.