Home / 4,709.12-6,499.78-3,217.64

Finding the Fourth Proportional to 4,709.12, 6,499.78 and 3,217.64

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Solution

The fourth proportional to 4,709.12, 6,499.78 and 3,217.64 is: 4,441.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,709.12 : 6,499.78 = 3,217.64 : x
  2. Step 2: Convert to fraction form
    4,709.12/6,499.78 = 3,217.64/x
  3. Step 3: Cross multiply
    4,709.12x = 6,499.78 × 3,217.64
  4. Step 4: Simplify right side
    4,709.12x = 20,913,952.12
  5. Step 5: Solve for x
    x = 20,913,952.12/4,709.12
  6. Step 6: Final answer
    x = 4,441.16

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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.