Home / 2,785.23-4,174.31-2,712.56

Finding the Fourth Proportional to 2,785.23, 4,174.31 and 2,712.56

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Solution

The fourth proportional to 2,785.23, 4,174.31 and 2,712.56 is: 4,065.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,785.23 : 4,174.31 = 2,712.56 : x
  2. Step 2: Convert to fraction form
    2,785.23/4,174.31 = 2,712.56/x
  3. Step 3: Cross multiply
    2,785.23x = 4,174.31 × 2,712.56
  4. Step 4: Simplify right side
    2,785.23x = 11,323,052.24
  5. Step 5: Solve for x
    x = 11,323,052.24/2,785.23
  6. Step 6: Final answer
    x = 4,065.39

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.