Home / 3,708.36-5,105.88-3,147.66

Finding the Fourth Proportional to 3,708.36, 5,105.88 and 3,147.66

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Solution

The fourth proportional to 3,708.36, 5,105.88 and 3,147.66 is: 4,333.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,708.36 : 5,105.88 = 3,147.66 : x
  2. Step 2: Convert to fraction form
    3,708.36/5,105.88 = 3,147.66/x
  3. Step 3: Cross multiply
    3,708.36x = 5,105.88 × 3,147.66
  4. Step 4: Simplify right side
    3,708.36x = 16,071,574.24
  5. Step 5: Solve for x
    x = 16,071,574.24/3,708.36
  6. Step 6: Final answer
    x = 4,333.88

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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.