Home / 3,708.68-5,115.56-2,380.28

Finding the Fourth Proportional to 3,708.68, 5,115.56 and 2,380.28

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Solution

The fourth proportional to 3,708.68, 5,115.56 and 2,380.28 is: 3,283.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,708.68 : 5,115.56 = 2,380.28 : x
  2. Step 2: Convert to fraction form
    3,708.68/5,115.56 = 2,380.28/x
  3. Step 3: Cross multiply
    3,708.68x = 5,115.56 × 2,380.28
  4. Step 4: Simplify right side
    3,708.68x = 12,176,465.16
  5. Step 5: Solve for x
    x = 12,176,465.16/3,708.68
  6. Step 6: Final answer
    x = 3,283.23

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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.