Home / 6,448.40-8,899.28-3,616.44

Finding the Fourth Proportional to 6,448.40, 8,899.28 and 3,616.44

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Solution

The fourth proportional to 6,448.40, 8,899.28 and 3,616.44 is: 4,990.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,448.40 : 8,899.28 = 3,616.44 : x
  2. Step 2: Convert to fraction form
    6,448.40/8,899.28 = 3,616.44/x
  3. Step 3: Cross multiply
    6,448.40x = 8,899.28 × 3,616.44
  4. Step 4: Simplify right side
    6,448.40x = 32,183,712.16
  5. Step 5: Solve for x
    x = 32,183,712.16/6,448.40
  6. Step 6: Final answer
    x = 4,990.96

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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.