Home / 1,329.51-1,833.66-1,108.11

Finding the Fourth Proportional to 1,329.51, 1,833.66 and 1,108.11

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Solution

The fourth proportional to 1,329.51, 1,833.66 and 1,108.11 is: 1,528.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,329.51 : 1,833.66 = 1,108.11 : x
  2. Step 2: Convert to fraction form
    1,329.51/1,833.66 = 1,108.11/x
  3. Step 3: Cross multiply
    1,329.51x = 1,833.66 × 1,108.11
  4. Step 4: Simplify right side
    1,329.51x = 2,031,896.98
  5. Step 5: Solve for x
    x = 2,031,896.98/1,329.51
  6. Step 6: Final answer
    x = 1,528.31

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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.