Home / 2,785.23-3,843.62-1,509.11

Finding the Fourth Proportional to 2,785.23, 3,843.62 and 1,509.11

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Solution

The fourth proportional to 2,785.23, 3,843.62 and 1,509.11 is: 2,082.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,785.23 : 3,843.62 = 1,509.11 : x
  2. Step 2: Convert to fraction form
    2,785.23/3,843.62 = 1,509.11/x
  3. Step 3: Cross multiply
    2,785.23x = 3,843.62 × 1,509.11
  4. Step 4: Simplify right side
    2,785.23x = 5,800,454.52
  5. Step 5: Solve for x
    x = 5,800,454.52/2,785.23
  6. Step 6: Final answer
    x = 2,082.58

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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.