Home / 5,711.19-7,880.43-3,192.51

Finding the Fourth Proportional to 5,711.19, 7,880.43 and 3,192.51

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Solution

The fourth proportional to 5,711.19, 7,880.43 and 3,192.51 is: 4,405.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,711.19 : 7,880.43 = 3,192.51 : x
  2. Step 2: Convert to fraction form
    5,711.19/7,880.43 = 3,192.51/x
  3. Step 3: Cross multiply
    5,711.19x = 7,880.43 × 3,192.51
  4. Step 4: Simplify right side
    5,711.19x = 25,158,351.58
  5. Step 5: Solve for x
    x = 25,158,351.58/5,711.19
  6. Step 6: Final answer
    x = 4,405.10

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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.