Home / 6,464.25-8,920.56-3,631.77

Finding the Fourth Proportional to 6,464.25, 8,920.56 and 3,631.77

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Solution

The fourth proportional to 6,464.25, 8,920.56 and 3,631.77 is: 5,011.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,464.25 : 8,920.56 = 3,631.77 : x
  2. Step 2: Convert to fraction form
    6,464.25/8,920.56 = 3,631.77/x
  3. Step 3: Cross multiply
    6,464.25x = 8,920.56 × 3,631.77
  4. Step 4: Simplify right side
    6,464.25x = 32,397,422.19
  5. Step 5: Solve for x
    x = 32,397,422.19/6,464.25
  6. Step 6: Final answer
    x = 5,011.78

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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.