Home / 1,898.24-2,618.78-1,151.91

Finding the Fourth Proportional to 1,898.24, 2,618.78 and 1,151.91

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Solution

The fourth proportional to 1,898.24, 2,618.78 and 1,151.91 is: 1,589.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,898.24 : 2,618.78 = 1,151.91 : x
  2. Step 2: Convert to fraction form
    1,898.24/2,618.78 = 1,151.91/x
  3. Step 3: Cross multiply
    1,898.24x = 2,618.78 × 1,151.91
  4. Step 4: Simplify right side
    1,898.24x = 3,016,593.11
  5. Step 5: Solve for x
    x = 3,016,593.11/1,898.24
  6. Step 6: Final answer
    x = 1,589.16

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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.