Home / 2,891.96-4,315.24-2,715.66

Finding the Fourth Proportional to 2,891.96, 4,315.24 and 2,715.66

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Solution

The fourth proportional to 2,891.96, 4,315.24 and 2,715.66 is: 4,052.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,891.96 : 4,315.24 = 2,715.66 : x
  2. Step 2: Convert to fraction form
    2,891.96/4,315.24 = 2,715.66/x
  3. Step 3: Cross multiply
    2,891.96x = 4,315.24 × 2,715.66
  4. Step 4: Simplify right side
    2,891.96x = 11,718,724.66
  5. Step 5: Solve for x
    x = 11,718,724.66/2,891.96
  6. Step 6: Final answer
    x = 4,052.17

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.