Home / 2,917.28-4,025.76-2,134.64

Finding the Fourth Proportional to 2,917.28, 4,025.76 and 2,134.64

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Solution

The fourth proportional to 2,917.28, 4,025.76 and 2,134.64 is: 2,945.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,917.28 : 4,025.76 = 2,134.64 : x
  2. Step 2: Convert to fraction form
    2,917.28/4,025.76 = 2,134.64/x
  3. Step 3: Cross multiply
    2,917.28x = 4,025.76 × 2,134.64
  4. Step 4: Simplify right side
    2,917.28x = 8,593,548.33
  5. Step 5: Solve for x
    x = 8,593,548.33/2,917.28
  6. Step 6: Final answer
    x = 2,945.74

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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.