Home / 3,706.28-5,115.20-2,134.08

Finding the Fourth Proportional to 3,706.28, 5,115.20 and 2,134.08

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Solution

The fourth proportional to 3,706.28, 5,115.20 and 2,134.08 is: 2,945.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,706.28 : 5,115.20 = 2,134.08 : x
  2. Step 2: Convert to fraction form
    3,706.28/5,115.20 = 2,134.08/x
  3. Step 3: Cross multiply
    3,706.28x = 5,115.20 × 2,134.08
  4. Step 4: Simplify right side
    3,706.28x = 10,916,246.02
  5. Step 5: Solve for x
    x = 10,916,246.02/3,706.28
  6. Step 6: Final answer
    x = 2,945.34

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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.