Home / 1,491.74-2,227.55-1,218.36

Finding the Fourth Proportional to 1,491.74, 2,227.55 and 1,218.36

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Solution

The fourth proportional to 1,491.74, 2,227.55 and 1,218.36 is: 1,819.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,491.74 : 2,227.55 = 1,218.36 : x
  2. Step 2: Convert to fraction form
    1,491.74/2,227.55 = 1,218.36/x
  3. Step 3: Cross multiply
    1,491.74x = 2,227.55 × 1,218.36
  4. Step 4: Simplify right side
    1,491.74x = 2,713,957.82
  5. Step 5: Solve for x
    x = 2,713,957.82/1,491.74
  6. Step 6: Final answer
    x = 1,819.33

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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.