Home / 1,939.24-2,674.34-1,266.76

Finding the Fourth Proportional to 1,939.24, 2,674.34 and 1,266.76

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Solution

The fourth proportional to 1,939.24, 2,674.34 and 1,266.76 is: 1,746.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,939.24 : 2,674.34 = 1,266.76 : x
  2. Step 2: Convert to fraction form
    1,939.24/2,674.34 = 1,266.76/x
  3. Step 3: Cross multiply
    1,939.24x = 2,674.34 × 1,266.76
  4. Step 4: Simplify right side
    1,939.24x = 3,387,746.94
  5. Step 5: Solve for x
    x = 3,387,746.94/1,939.24
  6. Step 6: Final answer
    x = 1,746.95

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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.