Home / 3,708.09-5,114.28-2,215.71

Finding the Fourth Proportional to 3,708.09, 5,114.28 and 2,215.71

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Solution

The fourth proportional to 3,708.09, 5,114.28 and 2,215.71 is: 3,055.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,708.09 : 5,114.28 = 2,215.71 : x
  2. Step 2: Convert to fraction form
    3,708.09/5,114.28 = 2,215.71/x
  3. Step 3: Cross multiply
    3,708.09x = 5,114.28 × 2,215.71
  4. Step 4: Simplify right side
    3,708.09x = 11,331,761.34
  5. Step 5: Solve for x
    x = 11,331,761.34/3,708.09
  6. Step 6: Final answer
    x = 3,055.96

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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.