Home / 2,689.26-3,701.08-2,275.06

Finding the Fourth Proportional to 2,689.26, 3,701.08 and 2,275.06

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Solution

The fourth proportional to 2,689.26, 3,701.08 and 2,275.06 is: 3,131.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,689.26 : 3,701.08 = 2,275.06 : x
  2. Step 2: Convert to fraction form
    2,689.26/3,701.08 = 2,275.06/x
  3. Step 3: Cross multiply
    2,689.26x = 3,701.08 × 2,275.06
  4. Step 4: Simplify right side
    2,689.26x = 8,420,179.06
  5. Step 5: Solve for x
    x = 8,420,179.06/2,689.26
  6. Step 6: Final answer
    x = 3,131.04

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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.