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Finding the Fourth Proportional to 6,448.96, 8,899.59 and 3,616.39

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Solution

The fourth proportional to 6,448.96, 8,899.59 and 3,616.39 is: 4,990.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,448.96 : 8,899.59 = 3,616.39 : x
  2. Step 2: Convert to fraction form
    6,448.96/8,899.59 = 3,616.39/x
  3. Step 3: Cross multiply
    6,448.96x = 8,899.59 × 3,616.39
  4. Step 4: Simplify right side
    6,448.96x = 32,184,388.28
  5. Step 5: Solve for x
    x = 32,184,388.28/6,448.96
  6. Step 6: Final answer
    x = 4,990.63

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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.