Home / 1,107.03-1,659.12-935.72

Finding the Fourth Proportional to 1,107.03, 1,659.12 and 935.72

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Solution

The fourth proportional to 1,107.03, 1,659.12 and 935.72 is: 1,402.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,107.03 : 1,659.12 = 935.72 : x
  2. Step 2: Convert to fraction form
    1,107.03/1,659.12 = 935.72/x
  3. Step 3: Cross multiply
    1,107.03x = 1,659.12 × 935.72
  4. Step 4: Simplify right side
    1,107.03x = 1,552,463.47
  5. Step 5: Solve for x
    x = 1,552,463.47/1,107.03
  6. Step 6: Final answer
    x = 1,402.37

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.