Home / 3,736.19-5,155.64-2,164.39

Finding the Fourth Proportional to 3,736.19, 5,155.64 and 2,164.39

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Solution

The fourth proportional to 3,736.19, 5,155.64 and 2,164.39 is: 2,986.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,736.19 : 5,155.64 = 2,164.39 : x
  2. Step 2: Convert to fraction form
    3,736.19/5,155.64 = 2,164.39/x
  3. Step 3: Cross multiply
    3,736.19x = 5,155.64 × 2,164.39
  4. Step 4: Simplify right side
    3,736.19x = 11,158,815.66
  5. Step 5: Solve for x
    x = 11,158,815.66/3,736.19
  6. Step 6: Final answer
    x = 2,986.68

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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.