Home / 5,108.60-7,666.20-2,770.22

Finding the Fourth Proportional to 5,108.60, 7,666.20 and 2,770.22

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Solution

The fourth proportional to 5,108.60, 7,666.20 and 2,770.22 is: 4,157.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,108.60 : 7,666.20 = 2,770.22 : x
  2. Step 2: Convert to fraction form
    5,108.60/7,666.20 = 2,770.22/x
  3. Step 3: Cross multiply
    5,108.60x = 7,666.20 × 2,770.22
  4. Step 4: Simplify right side
    5,108.60x = 21,237,060.56
  5. Step 5: Solve for x
    x = 21,237,060.56/5,108.60
  6. Step 6: Final answer
    x = 4,157.12

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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.