Home / 7,451.46-11,178.81-2,770.74

Finding the Fourth Proportional to 7,451.46, 11,178.81 and 2,770.74

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Solution

The fourth proportional to 7,451.46, 11,178.81 and 2,770.74 is: 4,156.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,451.46 : 11,178.81 = 2,770.74 : x
  2. Step 2: Convert to fraction form
    7,451.46/11,178.81 = 2,770.74/x
  3. Step 3: Cross multiply
    7,451.46x = 11,178.81 × 2,770.74
  4. Step 4: Simplify right side
    7,451.46x = 30,973,576.02
  5. Step 5: Solve for x
    x = 30,973,576.02/7,451.46
  6. Step 6: Final answer
    x = 4,156.71

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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.