Home / 6,621.93-9,929.68-3,849.40

Finding the Fourth Proportional to 6,621.93, 9,929.68 and 3,849.40

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Solution

The fourth proportional to 6,621.93, 9,929.68 and 3,849.40 is: 5,772.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,621.93 : 9,929.68 = 3,849.40 : x
  2. Step 2: Convert to fraction form
    6,621.93/9,929.68 = 3,849.40/x
  3. Step 3: Cross multiply
    6,621.93x = 9,929.68 × 3,849.40
  4. Step 4: Simplify right side
    6,621.93x = 38,223,310.19
  5. Step 5: Solve for x
    x = 38,223,310.19/6,621.93
  6. Step 6: Final answer
    x = 5,772.23

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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.