Home / 2,356.28-3,251.64-1,308.44

Finding the Fourth Proportional to 2,356.28, 3,251.64 and 1,308.44

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Solution

The fourth proportional to 2,356.28, 3,251.64 and 1,308.44 is: 1,805.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,356.28 : 3,251.64 = 1,308.44 : x
  2. Step 2: Convert to fraction form
    2,356.28/3,251.64 = 1,308.44/x
  3. Step 3: Cross multiply
    2,356.28x = 3,251.64 × 1,308.44
  4. Step 4: Simplify right side
    2,356.28x = 4,254,575.84
  5. Step 5: Solve for x
    x = 4,254,575.84/2,356.28
  6. Step 6: Final answer
    x = 1,805.63

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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.