Home / 3,395.24-4,686.57-2,138.39

Finding the Fourth Proportional to 3,395.24, 4,686.57 and 2,138.39

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Solution

The fourth proportional to 3,395.24, 4,686.57 and 2,138.39 is: 2,951.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,395.24 : 4,686.57 = 2,138.39 : x
  2. Step 2: Convert to fraction form
    3,395.24/4,686.57 = 2,138.39/x
  3. Step 3: Cross multiply
    3,395.24x = 4,686.57 × 2,138.39
  4. Step 4: Simplify right side
    3,395.24x = 10,021,726.14
  5. Step 5: Solve for x
    x = 10,021,726.14/3,395.24
  6. Step 6: Final answer
    x = 2,951.70

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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.