Home / 3,987.01-5,501.99-2,308.49

Finding the Fourth Proportional to 3,987.01, 5,501.99 and 2,308.49

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Solution

The fourth proportional to 3,987.01, 5,501.99 and 2,308.49 is: 3,185.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,987.01 : 5,501.99 = 2,308.49 : x
  2. Step 2: Convert to fraction form
    3,987.01/5,501.99 = 2,308.49/x
  3. Step 3: Cross multiply
    3,987.01x = 5,501.99 × 2,308.49
  4. Step 4: Simplify right side
    3,987.01x = 12,701,288.90
  5. Step 5: Solve for x
    x = 12,701,288.90/3,987.01
  6. Step 6: Final answer
    x = 3,185.67

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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.