Home / 4,985.75-7,471.34-2,211.60

Finding the Fourth Proportional to 4,985.75, 7,471.34 and 2,211.60

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Solution

The fourth proportional to 4,985.75, 7,471.34 and 2,211.60 is: 3,314.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,985.75 : 7,471.34 = 2,211.60 : x
  2. Step 2: Convert to fraction form
    4,985.75/7,471.34 = 2,211.60/x
  3. Step 3: Cross multiply
    4,985.75x = 7,471.34 × 2,211.60
  4. Step 4: Simplify right side
    4,985.75x = 16,523,640.80
  5. Step 5: Solve for x
    x = 16,523,640.80/4,985.75
  6. Step 6: Final answer
    x = 3,314.17

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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.