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Finding the Fourth Proportional to 2,778.42, 3,834.12 and 1,599.48

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Solution

The fourth proportional to 2,778.42, 3,834.12 and 1,599.48 is: 2,207.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,778.42 : 3,834.12 = 1,599.48 : x
  2. Step 2: Convert to fraction form
    2,778.42/3,834.12 = 1,599.48/x
  3. Step 3: Cross multiply
    2,778.42x = 3,834.12 × 1,599.48
  4. Step 4: Simplify right side
    2,778.42x = 6,132,598.26
  5. Step 5: Solve for x
    x = 6,132,598.26/2,778.42
  6. Step 6: Final answer
    x = 2,207.23

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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.