Home / 3,881.36-5,356.52-2,309.52

Finding the Fourth Proportional to 3,881.36, 5,356.52 and 2,309.52

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Solution

The fourth proportional to 3,881.36, 5,356.52 and 2,309.52 is: 3,187.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,881.36 : 5,356.52 = 2,309.52 : x
  2. Step 2: Convert to fraction form
    3,881.36/5,356.52 = 2,309.52/x
  3. Step 3: Cross multiply
    3,881.36x = 5,356.52 × 2,309.52
  4. Step 4: Simplify right side
    3,881.36x = 12,370,990.07
  5. Step 5: Solve for x
    x = 12,370,990.07/3,881.36
  6. Step 6: Final answer
    x = 3,187.28

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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.