Home / 2,354.64-3,249.60-1,306.80

Finding the Fourth Proportional to 2,354.64, 3,249.60 and 1,306.80

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Solution

The fourth proportional to 2,354.64, 3,249.60 and 1,306.80 is: 1,803.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,354.64 : 3,249.60 = 1,306.80 : x
  2. Step 2: Convert to fraction form
    2,354.64/3,249.60 = 1,306.80/x
  3. Step 3: Cross multiply
    2,354.64x = 3,249.60 × 1,306.80
  4. Step 4: Simplify right side
    2,354.64x = 4,246,577.28
  5. Step 5: Solve for x
    x = 4,246,577.28/2,354.64
  6. Step 6: Final answer
    x = 1,803.49

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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.