Home / 6,384.20-8,811.25-3,731.09

Finding the Fourth Proportional to 6,384.20, 8,811.25 and 3,731.09

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Solution

The fourth proportional to 6,384.20, 8,811.25 and 3,731.09 is: 5,149.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,384.20 : 8,811.25 = 3,731.09 : x
  2. Step 2: Convert to fraction form
    6,384.20/8,811.25 = 3,731.09/x
  3. Step 3: Cross multiply
    6,384.20x = 8,811.25 × 3,731.09
  4. Step 4: Simplify right side
    6,384.20x = 32,875,579.46
  5. Step 5: Solve for x
    x = 32,875,579.46/6,384.20
  6. Step 6: Final answer
    x = 5,149.52

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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.