Home / 2,326.31-3,210.32-1,278.38

Finding the Fourth Proportional to 2,326.31, 3,210.32 and 1,278.38

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Solution

The fourth proportional to 2,326.31, 3,210.32 and 1,278.38 is: 1,764.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,326.31 : 3,210.32 = 1,278.38 : x
  2. Step 2: Convert to fraction form
    2,326.31/3,210.32 = 1,278.38/x
  3. Step 3: Cross multiply
    2,326.31x = 3,210.32 × 1,278.38
  4. Step 4: Simplify right side
    2,326.31x = 4,103,986.44
  5. Step 5: Solve for x
    x = 4,103,986.44/2,326.31
  6. Step 6: Final answer
    x = 1,764.16

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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.