Home / 2,283.88-3,151.47-1,289.17

Finding the Fourth Proportional to 2,283.88, 3,151.47 and 1,289.17

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Solution

The fourth proportional to 2,283.88, 3,151.47 and 1,289.17 is: 1,778.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,283.88 : 3,151.47 = 1,289.17 : x
  2. Step 2: Convert to fraction form
    2,283.88/3,151.47 = 1,289.17/x
  3. Step 3: Cross multiply
    2,283.88x = 3,151.47 × 1,289.17
  4. Step 4: Simplify right side
    2,283.88x = 4,062,780.58
  5. Step 5: Solve for x
    x = 4,062,780.58/2,283.88
  6. Step 6: Final answer
    x = 1,778.89

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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.