Home / 1,634.23-2,255.69-1,340.20

Finding the Fourth Proportional to 1,634.23, 2,255.69 and 1,340.20

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Solution

The fourth proportional to 1,634.23, 2,255.69 and 1,340.20 is: 1,849.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,634.23 : 2,255.69 = 1,340.20 : x
  2. Step 2: Convert to fraction form
    1,634.23/2,255.69 = 1,340.20/x
  3. Step 3: Cross multiply
    1,634.23x = 2,255.69 × 1,340.20
  4. Step 4: Simplify right side
    1,634.23x = 3,023,064.46
  5. Step 5: Solve for x
    x = 3,023,064.46/1,634.23
  6. Step 6: Final answer
    x = 1,849.85

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Half scale
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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.