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Finding the Fourth Proportional to 4,472.88, 6,709.15 and 1,839.65

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Solution

The fourth proportional to 4,472.88, 6,709.15 and 1,839.65 is: 2,759.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,472.88 : 6,709.15 = 1,839.65 : x
  2. Step 2: Convert to fraction form
    4,472.88/6,709.15 = 1,839.65/x
  3. Step 3: Cross multiply
    4,472.88x = 6,709.15 × 1,839.65
  4. Step 4: Simplify right side
    4,472.88x = 12,342,483.94
  5. Step 5: Solve for x
    x = 12,342,483.94/4,472.88
  6. Step 6: Final answer
    x = 2,759.41

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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.