Home / 2,321.37-3,203.78-1,326.51

Finding the Fourth Proportional to 2,321.37, 3,203.78 and 1,326.51

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Solution

The fourth proportional to 2,321.37, 3,203.78 and 1,326.51 is: 1,830.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,321.37 : 3,203.78 = 1,326.51 : x
  2. Step 2: Convert to fraction form
    2,321.37/3,203.78 = 1,326.51/x
  3. Step 3: Cross multiply
    2,321.37x = 3,203.78 × 1,326.51
  4. Step 4: Simplify right side
    2,321.37x = 4,249,839.58
  5. Step 5: Solve for x
    x = 4,249,839.58/2,321.37
  6. Step 6: Final answer
    x = 1,830.75

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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.