Home / 1,424.23-2,134.51-1,098.91

Finding the Fourth Proportional to 1,424.23, 2,134.51 and 1,098.91

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Solution

The fourth proportional to 1,424.23, 2,134.51 and 1,098.91 is: 1,646.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,424.23 : 2,134.51 = 1,098.91 : x
  2. Step 2: Convert to fraction form
    1,424.23/2,134.51 = 1,098.91/x
  3. Step 3: Cross multiply
    1,424.23x = 2,134.51 × 1,098.91
  4. Step 4: Simplify right side
    1,424.23x = 2,345,634.38
  5. Step 5: Solve for x
    x = 2,345,634.38/1,424.23
  6. Step 6: Final answer
    x = 1,646.95

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.