Home / 3,727.40-5,140.74-2,530.42

Finding the Fourth Proportional to 3,727.40, 5,140.74 and 2,530.42

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Solution

The fourth proportional to 3,727.40, 5,140.74 and 2,530.42 is: 3,489.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,727.40 : 5,140.74 = 2,530.42 : x
  2. Step 2: Convert to fraction form
    3,727.40/5,140.74 = 2,530.42/x
  3. Step 3: Cross multiply
    3,727.40x = 5,140.74 × 2,530.42
  4. Step 4: Simplify right side
    3,727.40x = 13,008,218.66
  5. Step 5: Solve for x
    x = 13,008,218.66/3,727.40
  6. Step 6: Final answer
    x = 3,489.89

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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.