Home / 5,351.18-7,382.83-3,111.22

Finding the Fourth Proportional to 5,351.18, 7,382.83 and 3,111.22

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Solution

The fourth proportional to 5,351.18, 7,382.83 and 3,111.22 is: 4,292.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,351.18 : 7,382.83 = 3,111.22 : x
  2. Step 2: Convert to fraction form
    5,351.18/7,382.83 = 3,111.22/x
  3. Step 3: Cross multiply
    5,351.18x = 7,382.83 × 3,111.22
  4. Step 4: Simplify right side
    5,351.18x = 22,969,617.81
  5. Step 5: Solve for x
    x = 22,969,617.81/5,351.18
  6. Step 6: Final answer
    x = 4,292.44

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1.5x scale

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.