Home / 3,708.79-5,118.19-2,216.87

Finding the Fourth Proportional to 3,708.79, 5,118.19 and 2,216.87

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Solution

The fourth proportional to 3,708.79, 5,118.19 and 2,216.87 is: 3,059.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,708.79 : 5,118.19 = 2,216.87 : x
  2. Step 2: Convert to fraction form
    3,708.79/5,118.19 = 2,216.87/x
  3. Step 3: Cross multiply
    3,708.79x = 5,118.19 × 2,216.87
  4. Step 4: Simplify right side
    3,708.79x = 11,346,349.93
  5. Step 5: Solve for x
    x = 11,346,349.93/3,708.79
  6. Step 6: Final answer
    x = 3,059.32

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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.