Home / 2,686.22-3,707.25-1,803.86

Finding the Fourth Proportional to 2,686.22, 3,707.25 and 1,803.86

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Solution

The fourth proportional to 2,686.22, 3,707.25 and 1,803.86 is: 2,489.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,686.22 : 3,707.25 = 1,803.86 : x
  2. Step 2: Convert to fraction form
    2,686.22/3,707.25 = 1,803.86/x
  3. Step 3: Cross multiply
    2,686.22x = 3,707.25 × 1,803.86
  4. Step 4: Simplify right side
    2,686.22x = 6,687,359.99
  5. Step 5: Solve for x
    x = 6,687,359.99/2,686.22
  6. Step 6: Final answer
    x = 2,489.51

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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.