Home / 6,464.48-8,921.14-3,631.64

Finding the Fourth Proportional to 6,464.48, 8,921.14 and 3,631.64

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Solution

The fourth proportional to 6,464.48, 8,921.14 and 3,631.64 is: 5,011.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,464.48 : 8,921.14 = 3,631.64 : x
  2. Step 2: Convert to fraction form
    6,464.48/8,921.14 = 3,631.64/x
  3. Step 3: Cross multiply
    6,464.48x = 8,921.14 × 3,631.64
  4. Step 4: Simplify right side
    6,464.48x = 32,398,315.18
  5. Step 5: Solve for x
    x = 32,398,315.18/6,464.48
  6. Step 6: Final answer
    x = 5,011.75

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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.