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Finding the Fourth Proportional to 3,666.85, 5,497.71 and 1,717.99

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Solution

The fourth proportional to 3,666.85, 5,497.71 and 1,717.99 is: 2,575.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,666.85 : 5,497.71 = 1,717.99 : x
  2. Step 2: Convert to fraction form
    3,666.85/5,497.71 = 1,717.99/x
  3. Step 3: Cross multiply
    3,666.85x = 5,497.71 × 1,717.99
  4. Step 4: Simplify right side
    3,666.85x = 9,445,010.80
  5. Step 5: Solve for x
    x = 9,445,010.80/3,666.85
  6. Step 6: Final answer
    x = 2,575.78

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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.