Home / 2,326.81-3,210.97-1,278.88

Finding the Fourth Proportional to 2,326.81, 3,210.97 and 1,278.88

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Solution

The fourth proportional to 2,326.81, 3,210.97 and 1,278.88 is: 1,764.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,326.81 : 3,210.97 = 1,278.88 : x
  2. Step 2: Convert to fraction form
    2,326.81/3,210.97 = 1,278.88/x
  3. Step 3: Cross multiply
    2,326.81x = 3,210.97 × 1,278.88
  4. Step 4: Simplify right side
    2,326.81x = 4,106,445.31
  5. Step 5: Solve for x
    x = 4,106,445.31/2,326.81
  6. Step 6: Final answer
    x = 1,764.84

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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.