Home / 2,686.10-4,022.26-1,591.25

Finding the Fourth Proportional to 2,686.10, 4,022.26 and 1,591.25

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Solution

The fourth proportional to 2,686.10, 4,022.26 and 1,591.25 is: 2,382.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,686.10 : 4,022.26 = 1,591.25 : x
  2. Step 2: Convert to fraction form
    2,686.10/4,022.26 = 1,591.25/x
  3. Step 3: Cross multiply
    2,686.10x = 4,022.26 × 1,591.25
  4. Step 4: Simplify right side
    2,686.10x = 6,400,397.14
  5. Step 5: Solve for x
    x = 6,400,397.14/2,686.10
  6. Step 6: Final answer
    x = 2,382.79

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.