Home / 1,731.94-2,388.78-1,102.66

Finding the Fourth Proportional to 1,731.94, 2,388.78 and 1,102.66

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Solution

The fourth proportional to 1,731.94, 2,388.78 and 1,102.66 is: 1,520.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,731.94 : 2,388.78 = 1,102.66 : x
  2. Step 2: Convert to fraction form
    1,731.94/2,388.78 = 1,102.66/x
  3. Step 3: Cross multiply
    1,731.94x = 2,388.78 × 1,102.66
  4. Step 4: Simplify right side
    1,731.94x = 2,634,012.15
  5. Step 5: Solve for x
    x = 2,634,012.15/1,731.94
  6. Step 6: Final answer
    x = 1,520.84

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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.