Home / 2,178.47-3,006.30-1,183.77

Finding the Fourth Proportional to 2,178.47, 3,006.30 and 1,183.77

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Solution

The fourth proportional to 2,178.47, 3,006.30 and 1,183.77 is: 1,633.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,178.47 : 3,006.30 = 1,183.77 : x
  2. Step 2: Convert to fraction form
    2,178.47/3,006.30 = 1,183.77/x
  3. Step 3: Cross multiply
    2,178.47x = 3,006.30 × 1,183.77
  4. Step 4: Simplify right side
    2,178.47x = 3,558,767.75
  5. Step 5: Solve for x
    x = 3,558,767.75/2,178.47
  6. Step 6: Final answer
    x = 1,633.61

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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.