Home / 4,985.20-7,471.74-2,208.70

Finding the Fourth Proportional to 4,985.20, 7,471.74 and 2,208.70

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Solution

The fourth proportional to 4,985.20, 7,471.74 and 2,208.70 is: 3,310.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,985.20 : 7,471.74 = 2,208.70 : x
  2. Step 2: Convert to fraction form
    4,985.20/7,471.74 = 2,208.70/x
  3. Step 3: Cross multiply
    4,985.20x = 7,471.74 × 2,208.70
  4. Step 4: Simplify right side
    4,985.20x = 16,502,832.14
  5. Step 5: Solve for x
    x = 16,502,832.14/4,985.20
  6. Step 6: Final answer
    x = 3,310.37

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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.