Home / 3,890.36-5,366.70-2,712.44

Finding the Fourth Proportional to 3,890.36, 5,366.70 and 2,712.44

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Solution

The fourth proportional to 3,890.36, 5,366.70 and 2,712.44 is: 3,741.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,890.36 : 5,366.70 = 2,712.44 : x
  2. Step 2: Convert to fraction form
    3,890.36/5,366.70 = 2,712.44/x
  3. Step 3: Cross multiply
    3,890.36x = 5,366.70 × 2,712.44
  4. Step 4: Simplify right side
    3,890.36x = 14,556,851.75
  5. Step 5: Solve for x
    x = 14,556,851.75/3,890.36
  6. Step 6: Final answer
    x = 3,741.77

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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.