Home / 5,422.04-8,131.66-2,135.16

Finding the Fourth Proportional to 5,422.04, 8,131.66 and 2,135.16

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Solution

The fourth proportional to 5,422.04, 8,131.66 and 2,135.16 is: 3,202.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,422.04 : 8,131.66 = 2,135.16 : x
  2. Step 2: Convert to fraction form
    5,422.04/8,131.66 = 2,135.16/x
  3. Step 3: Cross multiply
    5,422.04x = 8,131.66 × 2,135.16
  4. Step 4: Simplify right side
    5,422.04x = 17,362,395.17
  5. Step 5: Solve for x
    x = 17,362,395.17/5,422.04
  6. Step 6: Final answer
    x = 3,202.19

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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.