Home / 4,902.15-7,353.93-2,821.80

Finding the Fourth Proportional to 4,902.15, 7,353.93 and 2,821.80

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Solution

The fourth proportional to 4,902.15, 7,353.93 and 2,821.80 is: 4,233.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,902.15 : 7,353.93 = 2,821.80 : x
  2. Step 2: Convert to fraction form
    4,902.15/7,353.93 = 2,821.80/x
  3. Step 3: Cross multiply
    4,902.15x = 7,353.93 × 2,821.80
  4. Step 4: Simplify right side
    4,902.15x = 20,751,319.67
  5. Step 5: Solve for x
    x = 20,751,319.67/4,902.15
  6. Step 6: Final answer
    x = 4,233.11

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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.