Home / 2,354.70-3,249.46-1,306.76

Finding the Fourth Proportional to 2,354.70, 3,249.46 and 1,306.76

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Solution

The fourth proportional to 2,354.70, 3,249.46 and 1,306.76 is: 1,803.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,354.70 : 3,249.46 = 1,306.76 : x
  2. Step 2: Convert to fraction form
    2,354.70/3,249.46 = 1,306.76/x
  3. Step 3: Cross multiply
    2,354.70x = 3,249.46 × 1,306.76
  4. Step 4: Simplify right side
    2,354.70x = 4,246,264.35
  5. Step 5: Solve for x
    x = 4,246,264.35/2,354.70
  6. Step 6: Final answer
    x = 1,803.31

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Half scale
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Double 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.