Home / 4,821.20-7,231.80-2,357.60

Finding the Fourth Proportional to 4,821.20, 7,231.80 and 2,357.60

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Solution

The fourth proportional to 4,821.20, 7,231.80 and 2,357.60 is: 3,536.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,821.20 : 7,231.80 = 2,357.60 : x
  2. Step 2: Convert to fraction form
    4,821.20/7,231.80 = 2,357.60/x
  3. Step 3: Cross multiply
    4,821.20x = 7,231.80 × 2,357.60
  4. Step 4: Simplify right side
    4,821.20x = 17,049,691.68
  5. Step 5: Solve for x
    x = 17,049,691.68/4,821.20
  6. Step 6: Final answer
    x = 3,536.40

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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.