Home / 3,781.40-5,214.11-2,586.58

Finding the Fourth Proportional to 3,781.40, 5,214.11 and 2,586.58

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Solution

The fourth proportional to 3,781.40, 5,214.11 and 2,586.58 is: 3,566.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,781.40 : 5,214.11 = 2,586.58 : x
  2. Step 2: Convert to fraction form
    3,781.40/5,214.11 = 2,586.58/x
  3. Step 3: Cross multiply
    3,781.40x = 5,214.11 × 2,586.58
  4. Step 4: Simplify right side
    3,781.40x = 13,486,712.64
  5. Step 5: Solve for x
    x = 13,486,712.64/3,781.40
  6. Step 6: Final answer
    x = 3,566.59

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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.