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Finding the Fourth Proportional to 3,017.76, 4,162.92 and 1,805.88

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Solution

The fourth proportional to 3,017.76, 4,162.92 and 1,805.88 is: 2,491.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,017.76 : 4,162.92 = 1,805.88 : x
  2. Step 2: Convert to fraction form
    3,017.76/4,162.92 = 1,805.88/x
  3. Step 3: Cross multiply
    3,017.76x = 4,162.92 × 1,805.88
  4. Step 4: Simplify right side
    3,017.76x = 7,517,733.97
  5. Step 5: Solve for x
    x = 7,517,733.97/3,017.76
  6. Step 6: Final answer
    x = 2,491.16

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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.