Home / 2,285.73-3,154.31-1,237.79

Finding the Fourth Proportional to 2,285.73, 3,154.31 and 1,237.79

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Solution

The fourth proportional to 2,285.73, 3,154.31 and 1,237.79 is: 1,708.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,285.73 : 3,154.31 = 1,237.79 : x
  2. Step 2: Convert to fraction form
    2,285.73/3,154.31 = 1,237.79/x
  3. Step 3: Cross multiply
    2,285.73x = 3,154.31 × 1,237.79
  4. Step 4: Simplify right side
    2,285.73x = 3,904,351.41
  5. Step 5: Solve for x
    x = 3,904,351.41/2,285.73
  6. Step 6: Final answer
    x = 1,708.14

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1.5x scale

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.