Home / 3,887.36-5,364.45-2,119

Finding the Fourth Proportional to 3,887.36, 5,364.45 and 2,119

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Solution

The fourth proportional to 3,887.36, 5,364.45 and 2,119 is: 2,924.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,887.36 : 5,364.45 = 2,119 : x
  2. Step 2: Convert to fraction form
    3,887.36/5,364.45 = 2,119/x
  3. Step 3: Cross multiply
    3,887.36x = 5,364.45 × 2,119
  4. Step 4: Simplify right side
    3,887.36x = 11,367,269.55
  5. Step 5: Solve for x
    x = 11,367,269.55/3,887.36
  6. Step 6: Final answer
    x = 2,924.16

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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.