Home / 6,384.20-8,809.81-3,551.42

Finding the Fourth Proportional to 6,384.20, 8,809.81 and 3,551.42

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Solution

The fourth proportional to 6,384.20, 8,809.81 and 3,551.42 is: 4,900.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,384.20 : 8,809.81 = 3,551.42 : x
  2. Step 2: Convert to fraction form
    6,384.20/8,809.81 = 3,551.42/x
  3. Step 3: Cross multiply
    6,384.20x = 8,809.81 × 3,551.42
  4. Step 4: Simplify right side
    6,384.20x = 31,287,348.58
  5. Step 5: Solve for x
    x = 31,287,348.58/6,384.20
  6. Step 6: Final answer
    x = 4,900.75

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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.