Home / 4,207.72-6,309.78-1,867.72

Finding the Fourth Proportional to 4,207.72, 6,309.78 and 1,867.72

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Solution

The fourth proportional to 4,207.72, 6,309.78 and 1,867.72 is: 2,800.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,207.72 : 6,309.78 = 1,867.72 : x
  2. Step 2: Convert to fraction form
    4,207.72/6,309.78 = 1,867.72/x
  3. Step 3: Cross multiply
    4,207.72x = 6,309.78 × 1,867.72
  4. Step 4: Simplify right side
    4,207.72x = 11,784,902.30
  5. Step 5: Solve for x
    x = 11,784,902.30/4,207.72
  6. Step 6: Final answer
    x = 2,800.78

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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.