Home / 2,040.45-2,815.77-1,144.11

Finding the Fourth Proportional to 2,040.45, 2,815.77 and 1,144.11

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Solution

The fourth proportional to 2,040.45, 2,815.77 and 1,144.11 is: 1,578.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,040.45 : 2,815.77 = 1,144.11 : x
  2. Step 2: Convert to fraction form
    2,040.45/2,815.77 = 1,144.11/x
  3. Step 3: Cross multiply
    2,040.45x = 2,815.77 × 1,144.11
  4. Step 4: Simplify right side
    2,040.45x = 3,221,550.61
  5. Step 5: Solve for x
    x = 3,221,550.61/2,040.45
  6. Step 6: Final answer
    x = 1,578.84

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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.