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Finding the Fourth Proportional to 4,490.73, 6,738.93 and 1,717.65

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Solution

The fourth proportional to 4,490.73, 6,738.93 and 1,717.65 is: 2,577.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,490.73 : 6,738.93 = 1,717.65 : x
  2. Step 2: Convert to fraction form
    4,490.73/6,738.93 = 1,717.65/x
  3. Step 3: Cross multiply
    4,490.73x = 6,738.93 × 1,717.65
  4. Step 4: Simplify right side
    4,490.73x = 11,575,123.11
  5. Step 5: Solve for x
    x = 11,575,123.11/4,490.73
  6. Step 6: Final answer
    x = 2,577.56

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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.