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Finding the Fourth Proportional to 1,704.74, 2,353.56 and 1,208.42

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Solution

The fourth proportional to 1,704.74, 2,353.56 and 1,208.42 is: 1,668.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,704.74 : 2,353.56 = 1,208.42 : x
  2. Step 2: Convert to fraction form
    1,704.74/2,353.56 = 1,208.42/x
  3. Step 3: Cross multiply
    1,704.74x = 2,353.56 × 1,208.42
  4. Step 4: Simplify right side
    1,704.74x = 2,844,088.98
  5. Step 5: Solve for x
    x = 2,844,088.98/1,704.74
  6. Step 6: Final answer
    x = 1,668.34

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.