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Finding the Fourth Proportional to 3,329.69, 4,990.08 and 1,575.16

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Solution

The fourth proportional to 3,329.69, 4,990.08 and 1,575.16 is: 2,360.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,329.69 : 4,990.08 = 1,575.16 : x
  2. Step 2: Convert to fraction form
    3,329.69/4,990.08 = 1,575.16/x
  3. Step 3: Cross multiply
    3,329.69x = 4,990.08 × 1,575.16
  4. Step 4: Simplify right side
    3,329.69x = 7,860,174.41
  5. Step 5: Solve for x
    x = 7,860,174.41/3,329.69
  6. Step 6: Final answer
    x = 2,360.63

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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.