Home / 3,086.27-4,259.06-1,689.02

Finding the Fourth Proportional to 3,086.27, 4,259.06 and 1,689.02

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Solution

The fourth proportional to 3,086.27, 4,259.06 and 1,689.02 is: 2,330.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,086.27 : 4,259.06 = 1,689.02 : x
  2. Step 2: Convert to fraction form
    3,086.27/4,259.06 = 1,689.02/x
  3. Step 3: Cross multiply
    3,086.27x = 4,259.06 × 1,689.02
  4. Step 4: Simplify right side
    3,086.27x = 7,193,629.08
  5. Step 5: Solve for x
    x = 7,193,629.08/3,086.27
  6. Step 6: Final answer
    x = 2,330.85

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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.