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Finding the Fourth Proportional to 1,995.92, 2,752.08 and 1,680.70

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Solution

The fourth proportional to 1,995.92, 2,752.08 and 1,680.70 is: 2,317.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,995.92 : 2,752.08 = 1,680.70 : x
  2. Step 2: Convert to fraction form
    1,995.92/2,752.08 = 1,680.70/x
  3. Step 3: Cross multiply
    1,995.92x = 2,752.08 × 1,680.70
  4. Step 4: Simplify right side
    1,995.92x = 4,625,427.01
  5. Step 5: Solve for x
    x = 4,625,427.01/1,995.92
  6. Step 6: Final answer
    x = 2,317.45

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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.