Home / 2,891.41-3,989.72-1,695.95

Finding the Fourth Proportional to 2,891.41, 3,989.72 and 1,695.95

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Solution

The fourth proportional to 2,891.41, 3,989.72 and 1,695.95 is: 2,340.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,891.41 : 3,989.72 = 1,695.95 : x
  2. Step 2: Convert to fraction form
    2,891.41/3,989.72 = 1,695.95/x
  3. Step 3: Cross multiply
    2,891.41x = 3,989.72 × 1,695.95
  4. Step 4: Simplify right side
    2,891.41x = 6,766,345.69
  5. Step 5: Solve for x
    x = 6,766,345.69/2,891.41
  6. Step 6: Final answer
    x = 2,340.15

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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.