Home / 4,952.40-7,419.60-3,919.20

Finding the Fourth Proportional to 4,952.40, 7,419.60 and 3,919.20

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Solution

The fourth proportional to 4,952.40, 7,419.60 and 3,919.20 is: 5,871.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,952.40 : 7,419.60 = 3,919.20 : x
  2. Step 2: Convert to fraction form
    4,952.40/7,419.60 = 3,919.20/x
  3. Step 3: Cross multiply
    4,952.40x = 7,419.60 × 3,919.20
  4. Step 4: Simplify right side
    4,952.40x = 29,078,896.32
  5. Step 5: Solve for x
    x = 29,078,896.32/4,952.40
  6. Step 6: Final answer
    x = 5,871.68

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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.