Home / 2,340.82-3,230.30-1,292.90

Finding the Fourth Proportional to 2,340.82, 3,230.30 and 1,292.90

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Solution

The fourth proportional to 2,340.82, 3,230.30 and 1,292.90 is: 1,784.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,340.82 : 3,230.30 = 1,292.90 : x
  2. Step 2: Convert to fraction form
    2,340.82/3,230.30 = 1,292.90/x
  3. Step 3: Cross multiply
    2,340.82x = 3,230.30 × 1,292.90
  4. Step 4: Simplify right side
    2,340.82x = 4,176,454.87
  5. Step 5: Solve for x
    x = 4,176,454.87/2,340.82
  6. Step 6: Final answer
    x = 1,784.18

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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.