Home / 1,634.78-2,448.76-1,218.91

Finding the Fourth Proportional to 1,634.78, 2,448.76 and 1,218.91

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Solution

The fourth proportional to 1,634.78, 2,448.76 and 1,218.91 is: 1,825.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,634.78 : 2,448.76 = 1,218.91 : x
  2. Step 2: Convert to fraction form
    1,634.78/2,448.76 = 1,218.91/x
  3. Step 3: Cross multiply
    1,634.78x = 2,448.76 × 1,218.91
  4. Step 4: Simplify right side
    1,634.78x = 2,984,815.77
  5. Step 5: Solve for x
    x = 2,984,815.77/1,634.78
  6. Step 6: Final answer
    x = 1,825.82

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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.