Home / 1,133.11-1,552.39-1,089.37

Finding the Fourth Proportional to 1,133.11, 1,552.39 and 1,089.37

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Solution

The fourth proportional to 1,133.11, 1,552.39 and 1,089.37 is: 1,492.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,133.11 : 1,552.39 = 1,089.37 : x
  2. Step 2: Convert to fraction form
    1,133.11/1,552.39 = 1,089.37/x
  3. Step 3: Cross multiply
    1,133.11x = 1,552.39 × 1,089.37
  4. Step 4: Simplify right side
    1,133.11x = 1,691,127.09
  5. Step 5: Solve for x
    x = 1,691,127.09/1,133.11
  6. Step 6: Final answer
    x = 1,492.47

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.