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Finding the Fourth Proportional to 1,995.70, 2,754.93 and 1,887.70

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Solution

The fourth proportional to 1,995.70, 2,754.93 and 1,887.70 is: 2,605.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,995.70 : 2,754.93 = 1,887.70 : x
  2. Step 2: Convert to fraction form
    1,995.70/2,754.93 = 1,887.70/x
  3. Step 3: Cross multiply
    1,995.70x = 2,754.93 × 1,887.70
  4. Step 4: Simplify right side
    1,995.70x = 5,200,481.36
  5. Step 5: Solve for x
    x = 5,200,481.36/1,995.70
  6. Step 6: Final answer
    x = 2,605.84

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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.