Home / 1,229.32-1,845.58-1,179.40

Finding the Fourth Proportional to 1,229.32, 1,845.58 and 1,179.40

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Solution

The fourth proportional to 1,229.32, 1,845.58 and 1,179.40 is: 1,770.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,229.32 : 1,845.58 = 1,179.40 : x
  2. Step 2: Convert to fraction form
    1,229.32/1,845.58 = 1,179.40/x
  3. Step 3: Cross multiply
    1,229.32x = 1,845.58 × 1,179.40
  4. Step 4: Simplify right side
    1,229.32x = 2,176,677.05
  5. Step 5: Solve for x
    x = 2,176,677.05/1,229.32
  6. Step 6: Final answer
    x = 1,770.64

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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.