Home / 4,709.72-7,067.91-1,938.92

Finding the Fourth Proportional to 4,709.72, 7,067.91 and 1,938.92

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Solution

The fourth proportional to 4,709.72, 7,067.91 and 1,938.92 is: 2,909.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,709.72 : 7,067.91 = 1,938.92 : x
  2. Step 2: Convert to fraction form
    4,709.72/7,067.91 = 1,938.92/x
  3. Step 3: Cross multiply
    4,709.72x = 7,067.91 × 1,938.92
  4. Step 4: Simplify right side
    4,709.72x = 13,704,112.06
  5. Step 5: Solve for x
    x = 13,704,112.06/4,709.72
  6. Step 6: Final answer
    x = 2,909.75

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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.