Home / 2,290.28-3,158.51-1,936.95

Finding the Fourth Proportional to 2,290.28, 3,158.51 and 1,936.95

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Solution

The fourth proportional to 2,290.28, 3,158.51 and 1,936.95 is: 2,671.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,290.28 : 3,158.51 = 1,936.95 : x
  2. Step 2: Convert to fraction form
    2,290.28/3,158.51 = 1,936.95/x
  3. Step 3: Cross multiply
    2,290.28x = 3,158.51 × 1,936.95
  4. Step 4: Simplify right side
    2,290.28x = 6,117,860.47
  5. Step 5: Solve for x
    x = 6,117,860.47/2,290.28
  6. Step 6: Final answer
    x = 2,671.22

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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.