Home / 2,340.32-3,229.38-1,292.12

Finding the Fourth Proportional to 2,340.32, 3,229.38 and 1,292.12

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Solution

The fourth proportional to 2,340.32, 3,229.38 and 1,292.12 is: 1,782.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,340.32 : 3,229.38 = 1,292.12 : x
  2. Step 2: Convert to fraction form
    2,340.32/3,229.38 = 1,292.12/x
  3. Step 3: Cross multiply
    2,340.32x = 3,229.38 × 1,292.12
  4. Step 4: Simplify right side
    2,340.32x = 4,172,746.49
  5. Step 5: Solve for x
    x = 4,172,746.49/2,340.32
  6. Step 6: Final answer
    x = 1,782.98

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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.