Home / 7,451.21-11,177.63-2,770.67

Finding the Fourth Proportional to 7,451.21, 11,177.63 and 2,770.67

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Solution

The fourth proportional to 7,451.21, 11,177.63 and 2,770.67 is: 4,156.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,451.21 : 11,177.63 = 2,770.67 : x
  2. Step 2: Convert to fraction form
    7,451.21/11,177.63 = 2,770.67/x
  3. Step 3: Cross multiply
    7,451.21x = 11,177.63 × 2,770.67
  4. Step 4: Simplify right side
    7,451.21x = 30,969,510.26
  5. Step 5: Solve for x
    x = 30,969,510.26/7,451.21
  6. Step 6: Final answer
    x = 4,156.31

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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.