Home / 2,356.08-3,251.40-1,308.12

Finding the Fourth Proportional to 2,356.08, 3,251.40 and 1,308.12

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Solution

The fourth proportional to 2,356.08, 3,251.40 and 1,308.12 is: 1,805.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,356.08 : 3,251.40 = 1,308.12 : x
  2. Step 2: Convert to fraction form
    2,356.08/3,251.40 = 1,308.12/x
  3. Step 3: Cross multiply
    2,356.08x = 3,251.40 × 1,308.12
  4. Step 4: Simplify right side
    2,356.08x = 4,253,221.37
  5. Step 5: Solve for x
    x = 4,253,221.37/2,356.08
  6. Step 6: Final answer
    x = 1,805.21

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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.