Home / 5,449.17-8,160.80-3,135.81

Finding the Fourth Proportional to 5,449.17, 8,160.80 and 3,135.81

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Solution

The fourth proportional to 5,449.17, 8,160.80 and 3,135.81 is: 4,696.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,449.17 : 8,160.80 = 3,135.81 : x
  2. Step 2: Convert to fraction form
    5,449.17/8,160.80 = 3,135.81/x
  3. Step 3: Cross multiply
    5,449.17x = 8,160.80 × 3,135.81
  4. Step 4: Simplify right side
    5,449.17x = 25,590,718.25
  5. Step 5: Solve for x
    x = 25,590,718.25/5,449.17
  6. Step 6: Final answer
    x = 4,696.26

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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.