Home / 2,639.43-3,640.01-2,266.29

Finding the Fourth Proportional to 2,639.43, 3,640.01 and 2,266.29

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Solution

The fourth proportional to 2,639.43, 3,640.01 and 2,266.29 is: 3,125.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,639.43 : 3,640.01 = 2,266.29 : x
  2. Step 2: Convert to fraction form
    2,639.43/3,640.01 = 2,266.29/x
  3. Step 3: Cross multiply
    2,639.43x = 3,640.01 × 2,266.29
  4. Step 4: Simplify right side
    2,639.43x = 8,249,306.93
  5. Step 5: Solve for x
    x = 8,249,306.93/2,639.43
  6. Step 6: Final answer
    x = 3,125.41

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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.