Home / 2,331.09-3,216.78-1,336.32

Finding the Fourth Proportional to 2,331.09, 3,216.78 and 1,336.32

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Solution

The fourth proportional to 2,331.09, 3,216.78 and 1,336.32 is: 1,844.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,331.09 : 3,216.78 = 1,336.32 : x
  2. Step 2: Convert to fraction form
    2,331.09/3,216.78 = 1,336.32/x
  3. Step 3: Cross multiply
    2,331.09x = 3,216.78 × 1,336.32
  4. Step 4: Simplify right side
    2,331.09x = 4,298,647.45
  5. Step 5: Solve for x
    x = 4,298,647.45/2,331.09
  6. Step 6: Final answer
    x = 1,844.05

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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.