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Finding the Fourth Proportional to 6,388.55, 8,816.11 and 3,594.05

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Solution

The fourth proportional to 6,388.55, 8,816.11 and 3,594.05 is: 4,959.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,388.55 : 8,816.11 = 3,594.05 : x
  2. Step 2: Convert to fraction form
    6,388.55/8,816.11 = 3,594.05/x
  3. Step 3: Cross multiply
    6,388.55x = 8,816.11 × 3,594.05
  4. Step 4: Simplify right side
    6,388.55x = 31,685,487.08
  5. Step 5: Solve for x
    x = 31,685,487.08/6,388.55
  6. Step 6: Final answer
    x = 4,959.73

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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.