Home / 3,687.90-5,090.06-2,272.30

Finding the Fourth Proportional to 3,687.90, 5,090.06 and 2,272.30

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Solution

The fourth proportional to 3,687.90, 5,090.06 and 2,272.30 is: 3,136.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,687.90 : 5,090.06 = 2,272.30 : x
  2. Step 2: Convert to fraction form
    3,687.90/5,090.06 = 2,272.30/x
  3. Step 3: Cross multiply
    3,687.90x = 5,090.06 × 2,272.30
  4. Step 4: Simplify right side
    3,687.90x = 11,566,143.34
  5. Step 5: Solve for x
    x = 11,566,143.34/3,687.90
  6. Step 6: Final answer
    x = 3,136.24

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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.