Home / 3,774.35-5,207.18-2,781.99

Finding the Fourth Proportional to 3,774.35, 5,207.18 and 2,781.99

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Solution

The fourth proportional to 3,774.35, 5,207.18 and 2,781.99 is: 3,838.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,774.35 : 5,207.18 = 2,781.99 : x
  2. Step 2: Convert to fraction form
    3,774.35/5,207.18 = 2,781.99/x
  3. Step 3: Cross multiply
    3,774.35x = 5,207.18 × 2,781.99
  4. Step 4: Simplify right side
    3,774.35x = 14,486,308.78
  5. Step 5: Solve for x
    x = 14,486,308.78/3,774.35
  6. Step 6: Final answer
    x = 3,838.10

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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.