Home / 3,910.18-5,395.98-2,141.77

Finding the Fourth Proportional to 3,910.18, 5,395.98 and 2,141.77

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Solution

The fourth proportional to 3,910.18, 5,395.98 and 2,141.77 is: 2,955.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,910.18 : 5,395.98 = 2,141.77 : x
  2. Step 2: Convert to fraction form
    3,910.18/5,395.98 = 2,141.77/x
  3. Step 3: Cross multiply
    3,910.18x = 5,395.98 × 2,141.77
  4. Step 4: Simplify right side
    3,910.18x = 11,556,948.08
  5. Step 5: Solve for x
    x = 11,556,948.08/3,910.18
  6. Step 6: Final answer
    x = 2,955.61

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1.5x scale

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.