Home / 1,617.80-2,233.42-1,089.46

Finding the Fourth Proportional to 1,617.80, 2,233.42 and 1,089.46

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Solution

The fourth proportional to 1,617.80, 2,233.42 and 1,089.46 is: 1,504.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,617.80 : 2,233.42 = 1,089.46 : x
  2. Step 2: Convert to fraction form
    1,617.80/2,233.42 = 1,089.46/x
  3. Step 3: Cross multiply
    1,617.80x = 2,233.42 × 1,089.46
  4. Step 4: Simplify right side
    1,617.80x = 2,433,221.75
  5. Step 5: Solve for x
    x = 2,433,221.75/1,617.80
  6. Step 6: Final answer
    x = 1,504.03

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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.