Home / 2,257.20-3,366.54-2,178.84

Finding the Fourth Proportional to 2,257.20, 3,366.54 and 2,178.84

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Solution

The fourth proportional to 2,257.20, 3,366.54 and 2,178.84 is: 3,249.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,257.20 : 3,366.54 = 2,178.84 : x
  2. Step 2: Convert to fraction form
    2,257.20/3,366.54 = 2,178.84/x
  3. Step 3: Cross multiply
    2,257.20x = 3,366.54 × 2,178.84
  4. Step 4: Simplify right side
    2,257.20x = 7,335,152.01
  5. Step 5: Solve for x
    x = 7,335,152.01/2,257.20
  6. Step 6: Final answer
    x = 3,249.67

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.