Home / 3,311.70-4,967.55-1,120.14

Finding the Fourth Proportional to 3,311.70, 4,967.55 and 1,120.14

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Solution

The fourth proportional to 3,311.70, 4,967.55 and 1,120.14 is: 1,680.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,311.70 : 4,967.55 = 1,120.14 : x
  2. Step 2: Convert to fraction form
    3,311.70/4,967.55 = 1,120.14/x
  3. Step 3: Cross multiply
    3,311.70x = 4,967.55 × 1,120.14
  4. Step 4: Simplify right side
    3,311.70x = 5,564,351.46
  5. Step 5: Solve for x
    x = 5,564,351.46/3,311.70
  6. Step 6: Final answer
    x = 1,680.21

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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.