Home / 5,080.23-7,620.35-2,156.49

Finding the Fourth Proportional to 5,080.23, 7,620.35 and 2,156.49

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Solution

The fourth proportional to 5,080.23, 7,620.35 and 2,156.49 is: 3,234.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,080.23 : 7,620.35 = 2,156.49 : x
  2. Step 2: Convert to fraction form
    5,080.23/7,620.35 = 2,156.49/x
  3. Step 3: Cross multiply
    5,080.23x = 7,620.35 × 2,156.49
  4. Step 4: Simplify right side
    5,080.23x = 16,433,197.79
  5. Step 5: Solve for x
    x = 16,433,197.79/5,080.23
  6. Step 6: Final answer
    x = 3,234.74

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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.