Home / 4,449.72-6,667.65-3,131.10

Finding the Fourth Proportional to 4,449.72, 6,667.65 and 3,131.10

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Solution

The fourth proportional to 4,449.72, 6,667.65 and 3,131.10 is: 4,691.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,449.72 : 6,667.65 = 3,131.10 : x
  2. Step 2: Convert to fraction form
    4,449.72/6,667.65 = 3,131.10/x
  3. Step 3: Cross multiply
    4,449.72x = 6,667.65 × 3,131.10
  4. Step 4: Simplify right side
    4,449.72x = 20,877,078.92
  5. Step 5: Solve for x
    x = 20,877,078.92/4,449.72
  6. Step 6: Final answer
    x = 4,691.77

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.