Home / 3,112.15-4,294.71-1,695.84

Finding the Fourth Proportional to 3,112.15, 4,294.71 and 1,695.84

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Solution

The fourth proportional to 3,112.15, 4,294.71 and 1,695.84 is: 2,340.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,112.15 : 4,294.71 = 1,695.84 : x
  2. Step 2: Convert to fraction form
    3,112.15/4,294.71 = 1,695.84/x
  3. Step 3: Cross multiply
    3,112.15x = 4,294.71 × 1,695.84
  4. Step 4: Simplify right side
    3,112.15x = 7,283,142.70
  5. Step 5: Solve for x
    x = 7,283,142.70/3,112.15
  6. Step 6: Final answer
    x = 2,340.23

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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.