Home / 2,908.23-4,011.21-1,789.77

Finding the Fourth Proportional to 2,908.23, 4,011.21 and 1,789.77

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Solution

The fourth proportional to 2,908.23, 4,011.21 and 1,789.77 is: 2,468.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,908.23 : 4,011.21 = 1,789.77 : x
  2. Step 2: Convert to fraction form
    2,908.23/4,011.21 = 1,789.77/x
  3. Step 3: Cross multiply
    2,908.23x = 4,011.21 × 1,789.77
  4. Step 4: Simplify right side
    2,908.23x = 7,179,143.32
  5. Step 5: Solve for x
    x = 7,179,143.32/2,908.23
  6. Step 6: Final answer
    x = 2,468.56

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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.