Home / 1,989.18-2,744.75-1,104.98

Finding the Fourth Proportional to 1,989.18, 2,744.75 and 1,104.98

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Solution

The fourth proportional to 1,989.18, 2,744.75 and 1,104.98 is: 1,524.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,989.18 : 2,744.75 = 1,104.98 : x
  2. Step 2: Convert to fraction form
    1,989.18/2,744.75 = 1,104.98/x
  3. Step 3: Cross multiply
    1,989.18x = 2,744.75 × 1,104.98
  4. Step 4: Simplify right side
    1,989.18x = 3,032,882.89
  5. Step 5: Solve for x
    x = 3,032,882.89/1,989.18
  6. Step 6: Final answer
    x = 1,524.69

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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.