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Finding the Fourth Proportional to 6,448.91, 8,899.11 and 3,616.34

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Solution

The fourth proportional to 6,448.91, 8,899.11 and 3,616.34 is: 4,990.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,448.91 : 8,899.11 = 3,616.34 : x
  2. Step 2: Convert to fraction form
    6,448.91/8,899.11 = 3,616.34/x
  3. Step 3: Cross multiply
    6,448.91x = 8,899.11 × 3,616.34
  4. Step 4: Simplify right side
    6,448.91x = 32,182,162.96
  5. Step 5: Solve for x
    x = 32,182,162.96/6,448.91
  6. Step 6: Final answer
    x = 4,990.33

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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.