Home / 5,331.78-7,357.80-2,974.50

Finding the Fourth Proportional to 5,331.78, 7,357.80 and 2,974.50

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Solution

The fourth proportional to 5,331.78, 7,357.80 and 2,974.50 is: 4,104.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,331.78 : 7,357.80 = 2,974.50 : x
  2. Step 2: Convert to fraction form
    5,331.78/7,357.80 = 2,974.50/x
  3. Step 3: Cross multiply
    5,331.78x = 7,357.80 × 2,974.50
  4. Step 4: Simplify right side
    5,331.78x = 21,885,776.10
  5. Step 5: Solve for x
    x = 21,885,776.10/5,331.78
  6. Step 6: Final answer
    x = 4,104.78

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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.