Home / 3,840.21-5,748.98-2,670.57

Finding the Fourth Proportional to 3,840.21, 5,748.98 and 2,670.57

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Solution

The fourth proportional to 3,840.21, 5,748.98 and 2,670.57 is: 3,997.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,840.21 : 5,748.98 = 2,670.57 : x
  2. Step 2: Convert to fraction form
    3,840.21/5,748.98 = 2,670.57/x
  3. Step 3: Cross multiply
    3,840.21x = 5,748.98 × 2,670.57
  4. Step 4: Simplify right side
    3,840.21x = 15,353,040.17
  5. Step 5: Solve for x
    x = 15,353,040.17/3,840.21
  6. Step 6: Final answer
    x = 3,997.97

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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.