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Finding the Fourth Proportional to 1,999.75, 2,760.01 and 1,254.35

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Solution

The fourth proportional to 1,999.75, 2,760.01 and 1,254.35 is: 1,731.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,999.75 : 2,760.01 = 1,254.35 : x
  2. Step 2: Convert to fraction form
    1,999.75/2,760.01 = 1,254.35/x
  3. Step 3: Cross multiply
    1,999.75x = 2,760.01 × 1,254.35
  4. Step 4: Simplify right side
    1,999.75x = 3,462,018.54
  5. Step 5: Solve for x
    x = 3,462,018.54/1,999.75
  6. Step 6: Final answer
    x = 1,731.23

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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.