Home / 2,650.07-3,974.49-1,089.74

Finding the Fourth Proportional to 2,650.07, 3,974.49 and 1,089.74

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Solution

The fourth proportional to 2,650.07, 3,974.49 and 1,089.74 is: 1,634.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,650.07 : 3,974.49 = 1,089.74 : x
  2. Step 2: Convert to fraction form
    2,650.07/3,974.49 = 1,089.74/x
  3. Step 3: Cross multiply
    2,650.07x = 3,974.49 × 1,089.74
  4. Step 4: Simplify right side
    2,650.07x = 4,331,140.86
  5. Step 5: Solve for x
    x = 4,331,140.86/2,650.07
  6. Step 6: Final answer
    x = 1,634.35

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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.