Home / 2,082.78-2,873.52-1,336.68

Finding the Fourth Proportional to 2,082.78, 2,873.52 and 1,336.68

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Solution

The fourth proportional to 2,082.78, 2,873.52 and 1,336.68 is: 1,844.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,082.78 : 2,873.52 = 1,336.68 : x
  2. Step 2: Convert to fraction form
    2,082.78/2,873.52 = 1,336.68/x
  3. Step 3: Cross multiply
    2,082.78x = 2,873.52 × 1,336.68
  4. Step 4: Simplify right side
    2,082.78x = 3,840,976.71
  5. Step 5: Solve for x
    x = 3,840,976.71/2,082.78
  6. Step 6: Final answer
    x = 1,844.16

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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.