Home / 1,112.13-1,669.36-496.26

Finding the Fourth Proportional to 1,112.13, 1,669.36 and 496.26

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Solution

The fourth proportional to 1,112.13, 1,669.36 and 496.26 is: 744.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,112.13 : 1,669.36 = 496.26 : x
  2. Step 2: Convert to fraction form
    1,112.13/1,669.36 = 496.26/x
  3. Step 3: Cross multiply
    1,112.13x = 1,669.36 × 496.26
  4. Step 4: Simplify right side
    1,112.13x = 828,436.59
  5. Step 5: Solve for x
    x = 828,436.59/1,112.13
  6. Step 6: Final answer
    x = 744.91

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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.