Home / 2,178.79-3,267.45-1,177.94

Finding the Fourth Proportional to 2,178.79, 3,267.45 and 1,177.94

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Solution

The fourth proportional to 2,178.79, 3,267.45 and 1,177.94 is: 1,766.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,178.79 : 3,267.45 = 1,177.94 : x
  2. Step 2: Convert to fraction form
    2,178.79/3,267.45 = 1,177.94/x
  3. Step 3: Cross multiply
    2,178.79x = 3,267.45 × 1,177.94
  4. Step 4: Simplify right side
    2,178.79x = 3,848,860.05
  5. Step 5: Solve for x
    x = 3,848,860.05/2,178.79
  6. Step 6: Final answer
    x = 1,766.51

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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.