Home / 2,356.45-3,251.86-1,308.49

Finding the Fourth Proportional to 2,356.45, 3,251.86 and 1,308.49

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Solution

The fourth proportional to 2,356.45, 3,251.86 and 1,308.49 is: 1,805.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,356.45 : 3,251.86 = 1,308.49 : x
  2. Step 2: Convert to fraction form
    2,356.45/3,251.86 = 1,308.49/x
  3. Step 3: Cross multiply
    2,356.45x = 3,251.86 × 1,308.49
  4. Step 4: Simplify right side
    2,356.45x = 4,255,026.29
  5. Step 5: Solve for x
    x = 4,255,026.29/2,356.45
  6. Step 6: Final answer
    x = 1,805.69

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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.