Home / 1,108.50-1,665.78-1,036.26

Finding the Fourth Proportional to 1,108.50, 1,665.78 and 1,036.26

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Solution

The fourth proportional to 1,108.50, 1,665.78 and 1,036.26 is: 1,557.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,108.50 : 1,665.78 = 1,036.26 : x
  2. Step 2: Convert to fraction form
    1,108.50/1,665.78 = 1,036.26/x
  3. Step 3: Cross multiply
    1,108.50x = 1,665.78 × 1,036.26
  4. Step 4: Simplify right side
    1,108.50x = 1,726,181.18
  5. Step 5: Solve for x
    x = 1,726,181.18/1,108.50
  6. Step 6: Final answer
    x = 1,557.22

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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.