Home / 2,376.68-3,279.84-1,382.12

Finding the Fourth Proportional to 2,376.68, 3,279.84 and 1,382.12

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Solution

The fourth proportional to 2,376.68, 3,279.84 and 1,382.12 is: 1,907.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,376.68 : 3,279.84 = 1,382.12 : x
  2. Step 2: Convert to fraction form
    2,376.68/3,279.84 = 1,382.12/x
  3. Step 3: Cross multiply
    2,376.68x = 3,279.84 × 1,382.12
  4. Step 4: Simplify right side
    2,376.68x = 4,533,132.46
  5. Step 5: Solve for x
    x = 4,533,132.46/2,376.68
  6. Step 6: Final answer
    x = 1,907.34

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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.