Home / 2,154.32-3,226.92-1,229.40

Finding the Fourth Proportional to 2,154.32, 3,226.92 and 1,229.40

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Solution

The fourth proportional to 2,154.32, 3,226.92 and 1,229.40 is: 1,841.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,154.32 : 3,226.92 = 1,229.40 : x
  2. Step 2: Convert to fraction form
    2,154.32/3,226.92 = 1,229.40/x
  3. Step 3: Cross multiply
    2,154.32x = 3,226.92 × 1,229.40
  4. Step 4: Simplify right side
    2,154.32x = 3,967,175.45
  5. Step 5: Solve for x
    x = 3,967,175.45/2,154.32
  6. Step 6: Final answer
    x = 1,841.50

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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.