Home / 3,708.76-5,117.96-2,215.79

Finding the Fourth Proportional to 3,708.76, 5,117.96 and 2,215.79

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Solution

The fourth proportional to 3,708.76, 5,117.96 and 2,215.79 is: 3,057.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,708.76 : 5,117.96 = 2,215.79 : x
  2. Step 2: Convert to fraction form
    3,708.76/5,117.96 = 2,215.79/x
  3. Step 3: Cross multiply
    3,708.76x = 5,117.96 × 2,215.79
  4. Step 4: Simplify right side
    3,708.76x = 11,340,333.41
  5. Step 5: Solve for x
    x = 11,340,333.41/3,708.76
  6. Step 6: Final answer
    x = 3,057.72

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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.