Home / 1,989.04-2,744.86-1,104.92

Finding the Fourth Proportional to 1,989.04, 2,744.86 and 1,104.92

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Solution

The fourth proportional to 1,989.04, 2,744.86 and 1,104.92 is: 1,524.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,989.04 : 2,744.86 = 1,104.92 : x
  2. Step 2: Convert to fraction form
    1,989.04/2,744.86 = 1,104.92/x
  3. Step 3: Cross multiply
    1,989.04x = 2,744.86 × 1,104.92
  4. Step 4: Simplify right side
    1,989.04x = 3,032,850.71
  5. Step 5: Solve for x
    x = 3,032,850.71/1,989.04
  6. Step 6: Final answer
    x = 1,524.78

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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.