Home / 3,987.16-5,500.62-2,412.52

Finding the Fourth Proportional to 3,987.16, 5,500.62 and 2,412.52

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Solution

The fourth proportional to 3,987.16, 5,500.62 and 2,412.52 is: 3,328.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,987.16 : 5,500.62 = 2,412.52 : x
  2. Step 2: Convert to fraction form
    3,987.16/5,500.62 = 2,412.52/x
  3. Step 3: Cross multiply
    3,987.16x = 5,500.62 × 2,412.52
  4. Step 4: Simplify right side
    3,987.16x = 13,270,355.76
  5. Step 5: Solve for x
    x = 13,270,355.76/3,987.16
  6. Step 6: Final answer
    x = 3,328.27

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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.