Home / 3,690.41-5,537.05-2,129.58

Finding the Fourth Proportional to 3,690.41, 5,537.05 and 2,129.58

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Solution

The fourth proportional to 3,690.41, 5,537.05 and 2,129.58 is: 3,195.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,690.41 : 5,537.05 = 2,129.58 : x
  2. Step 2: Convert to fraction form
    3,690.41/5,537.05 = 2,129.58/x
  3. Step 3: Cross multiply
    3,690.41x = 5,537.05 × 2,129.58
  4. Step 4: Simplify right side
    3,690.41x = 11,791,585.62
  5. Step 5: Solve for x
    x = 11,791,585.62/3,690.41
  6. Step 6: Final answer
    x = 3,195.20

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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.