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Finding the Fourth Proportional to 2,305.74, 3,182.04 and 1,310.88

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Solution

The fourth proportional to 2,305.74, 3,182.04 and 1,310.88 is: 1,809.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,305.74 : 3,182.04 = 1,310.88 : x
  2. Step 2: Convert to fraction form
    2,305.74/3,182.04 = 1,310.88/x
  3. Step 3: Cross multiply
    2,305.74x = 3,182.04 × 1,310.88
  4. Step 4: Simplify right side
    2,305.74x = 4,171,272.60
  5. Step 5: Solve for x
    x = 4,171,272.60/2,305.74
  6. Step 6: Final answer
    x = 1,809.08

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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.