Home / 3,987.37-5,971.78-3,848.95

Finding the Fourth Proportional to 3,987.37, 5,971.78 and 3,848.95

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Solution

The fourth proportional to 3,987.37, 5,971.78 and 3,848.95 is: 5,764.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,987.37 : 5,971.78 = 3,848.95 : x
  2. Step 2: Convert to fraction form
    3,987.37/5,971.78 = 3,848.95/x
  3. Step 3: Cross multiply
    3,987.37x = 5,971.78 × 3,848.95
  4. Step 4: Simplify right side
    3,987.37x = 22,985,082.63
  5. Step 5: Solve for x
    x = 22,985,082.63/3,987.37
  6. Step 6: Final answer
    x = 5,764.47

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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.