Home / 4,830.20-7,245.31-1,543.55

Finding the Fourth Proportional to 4,830.20, 7,245.31 and 1,543.55

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Solution

The fourth proportional to 4,830.20, 7,245.31 and 1,543.55 is: 2,315.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,830.20 : 7,245.31 = 1,543.55 : x
  2. Step 2: Convert to fraction form
    4,830.20/7,245.31 = 1,543.55/x
  3. Step 3: Cross multiply
    4,830.20x = 7,245.31 × 1,543.55
  4. Step 4: Simplify right side
    4,830.20x = 11,183,476.28
  5. Step 5: Solve for x
    x = 11,183,476.28/4,830.20
  6. Step 6: Final answer
    x = 2,315.32

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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.