Home / 2,230.65-3,078.25-1,235.92

Finding the Fourth Proportional to 2,230.65, 3,078.25 and 1,235.92

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Solution

The fourth proportional to 2,230.65, 3,078.25 and 1,235.92 is: 1,705.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,230.65 : 3,078.25 = 1,235.92 : x
  2. Step 2: Convert to fraction form
    2,230.65/3,078.25 = 1,235.92/x
  3. Step 3: Cross multiply
    2,230.65x = 3,078.25 × 1,235.92
  4. Step 4: Simplify right side
    2,230.65x = 3,804,470.74
  5. Step 5: Solve for x
    x = 3,804,470.74/2,230.65
  6. Step 6: Final answer
    x = 1,705.54

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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.