Home / 7,219.55-10,821.10-3,056.96

Finding the Fourth Proportional to 7,219.55, 10,821.10 and 3,056.96

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Solution

The fourth proportional to 7,219.55, 10,821.10 and 3,056.96 is: 4,581.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,219.55 : 10,821.10 = 3,056.96 : x
  2. Step 2: Convert to fraction form
    7,219.55/10,821.10 = 3,056.96/x
  3. Step 3: Cross multiply
    7,219.55x = 10,821.10 × 3,056.96
  4. Step 4: Simplify right side
    7,219.55x = 33,079,615.75
  5. Step 5: Solve for x
    x = 33,079,615.75/7,219.55
  6. Step 6: Final answer
    x = 4,581.95

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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.