Home / 3,110.97-4,292.79-1,785.11

Finding the Fourth Proportional to 3,110.97, 4,292.79 and 1,785.11

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Solution

The fourth proportional to 3,110.97, 4,292.79 and 1,785.11 is: 2,463.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,110.97 : 4,292.79 = 1,785.11 : x
  2. Step 2: Convert to fraction form
    3,110.97/4,292.79 = 1,785.11/x
  3. Step 3: Cross multiply
    3,110.97x = 4,292.79 × 1,785.11
  4. Step 4: Simplify right side
    3,110.97x = 7,663,102.36
  5. Step 5: Solve for x
    x = 7,663,102.36/3,110.97
  6. Step 6: Final answer
    x = 2,463.25

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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.