Home / 3,086.97-4,629.37-1,915.17

Finding the Fourth Proportional to 3,086.97, 4,629.37 and 1,915.17

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Solution

The fourth proportional to 3,086.97, 4,629.37 and 1,915.17 is: 2,872.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,086.97 : 4,629.37 = 1,915.17 : x
  2. Step 2: Convert to fraction form
    3,086.97/4,629.37 = 1,915.17/x
  3. Step 3: Cross multiply
    3,086.97x = 4,629.37 × 1,915.17
  4. Step 4: Simplify right side
    3,086.97x = 8,866,030.54
  5. Step 5: Solve for x
    x = 8,866,030.54/3,086.97
  6. Step 6: Final answer
    x = 2,872.08

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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.