Home / 1,118.46-1,669.51-1,036

Finding the Fourth Proportional to 1,118.46, 1,669.51 and 1,036

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Solution

The fourth proportional to 1,118.46, 1,669.51 and 1,036 is: 1,546.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,118.46 : 1,669.51 = 1,036 : x
  2. Step 2: Convert to fraction form
    1,118.46/1,669.51 = 1,036/x
  3. Step 3: Cross multiply
    1,118.46x = 1,669.51 × 1,036
  4. Step 4: Simplify right side
    1,118.46x = 1,729,612.36
  5. Step 5: Solve for x
    x = 1,729,612.36/1,118.46
  6. Step 6: Final answer
    x = 1,546.42

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.