Home / 6,821.42-9,399.92-4,929.66

Finding the Fourth Proportional to 6,821.42, 9,399.92 and 4,929.66

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Solution

The fourth proportional to 6,821.42, 9,399.92 and 4,929.66 is: 6,793.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,821.42 : 9,399.92 = 4,929.66 : x
  2. Step 2: Convert to fraction form
    6,821.42/9,399.92 = 4,929.66/x
  3. Step 3: Cross multiply
    6,821.42x = 9,399.92 × 4,929.66
  4. Step 4: Simplify right side
    6,821.42x = 46,338,384.98
  5. Step 5: Solve for x
    x = 46,338,384.98/6,821.42
  6. Step 6: Final answer
    x = 6,793.08

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.