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Finding the Fourth Proportional to 6,384.62, 8,799.90 and 5,481.74

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Solution

The fourth proportional to 6,384.62, 8,799.90 and 5,481.74 is: 7,555.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,384.62 : 8,799.90 = 5,481.74 : x
  2. Step 2: Convert to fraction form
    6,384.62/8,799.90 = 5,481.74/x
  3. Step 3: Cross multiply
    6,384.62x = 8,799.90 × 5,481.74
  4. Step 4: Simplify right side
    6,384.62x = 48,238,763.83
  5. Step 5: Solve for x
    x = 48,238,763.83/6,384.62
  6. Step 6: Final answer
    x = 7,555.46

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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.