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Finding the Fourth Proportional to 3,771.68, 5,657.42 and 1,306.34

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Solution

The fourth proportional to 3,771.68, 5,657.42 and 1,306.34 is: 1,959.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,771.68 : 5,657.42 = 1,306.34 : x
  2. Step 2: Convert to fraction form
    3,771.68/5,657.42 = 1,306.34/x
  3. Step 3: Cross multiply
    3,771.68x = 5,657.42 × 1,306.34
  4. Step 4: Simplify right side
    3,771.68x = 7,390,514.04
  5. Step 5: Solve for x
    x = 7,390,514.04/3,771.68
  6. Step 6: Final answer
    x = 1,959.48

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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.