Home / 2,376.28-3,279.18-1,678.60

Finding the Fourth Proportional to 2,376.28, 3,279.18 and 1,678.60

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Solution

The fourth proportional to 2,376.28, 3,279.18 and 1,678.60 is: 2,316.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,376.28 : 3,279.18 = 1,678.60 : x
  2. Step 2: Convert to fraction form
    2,376.28/3,279.18 = 1,678.60/x
  3. Step 3: Cross multiply
    2,376.28x = 3,279.18 × 1,678.60
  4. Step 4: Simplify right side
    2,376.28x = 5,504,431.55
  5. Step 5: Solve for x
    x = 5,504,431.55/2,376.28
  6. Step 6: Final answer
    x = 2,316.41

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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.