Home / 2,908.11-4,013.28-1,581.91

Finding the Fourth Proportional to 2,908.11, 4,013.28 and 1,581.91

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Solution

The fourth proportional to 2,908.11, 4,013.28 and 1,581.91 is: 2,183.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,908.11 : 4,013.28 = 1,581.91 : x
  2. Step 2: Convert to fraction form
    2,908.11/4,013.28 = 1,581.91/x
  3. Step 3: Cross multiply
    2,908.11x = 4,013.28 × 1,581.91
  4. Step 4: Simplify right side
    2,908.11x = 6,348,647.76
  5. Step 5: Solve for x
    x = 6,348,647.76/2,908.11
  6. Step 6: Final answer
    x = 2,183.08

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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.