Home / 3,686.22-5,086.26-2,113.74

Finding the Fourth Proportional to 3,686.22, 5,086.26 and 2,113.74

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Solution

The fourth proportional to 3,686.22, 5,086.26 and 2,113.74 is: 2,916.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,686.22 : 5,086.26 = 2,113.74 : x
  2. Step 2: Convert to fraction form
    3,686.22/5,086.26 = 2,113.74/x
  3. Step 3: Cross multiply
    3,686.22x = 5,086.26 × 2,113.74
  4. Step 4: Simplify right side
    3,686.22x = 10,751,031.21
  5. Step 5: Solve for x
    x = 10,751,031.21/3,686.22
  6. Step 6: Final answer
    x = 2,916.55

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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.