Home / 4,929.15-7,387.95-3,830.18

Finding the Fourth Proportional to 4,929.15, 7,387.95 and 3,830.18

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Solution

The fourth proportional to 4,929.15, 7,387.95 and 3,830.18 is: 5,740.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,929.15 : 7,387.95 = 3,830.18 : x
  2. Step 2: Convert to fraction form
    4,929.15/7,387.95 = 3,830.18/x
  3. Step 3: Cross multiply
    4,929.15x = 7,387.95 × 3,830.18
  4. Step 4: Simplify right side
    4,929.15x = 28,297,178.33
  5. Step 5: Solve for x
    x = 28,297,178.33/4,929.15
  6. Step 6: Final answer
    x = 5,740.78

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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.