Home / 2,326.68-3,210.84-1,278.75

Finding the Fourth Proportional to 2,326.68, 3,210.84 and 1,278.75

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Solution

The fourth proportional to 2,326.68, 3,210.84 and 1,278.75 is: 1,764.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,326.68 : 3,210.84 = 1,278.75 : x
  2. Step 2: Convert to fraction form
    2,326.68/3,210.84 = 1,278.75/x
  3. Step 3: Cross multiply
    2,326.68x = 3,210.84 × 1,278.75
  4. Step 4: Simplify right side
    2,326.68x = 4,105,861.65
  5. Step 5: Solve for x
    x = 4,105,861.65/2,326.68
  6. Step 6: Final answer
    x = 1,764.69

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Half scale
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Double scale
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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.