Home / 3,331.80-4,999.56-1,253.28

Finding the Fourth Proportional to 3,331.80, 4,999.56 and 1,253.28

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Solution

The fourth proportional to 3,331.80, 4,999.56 and 1,253.28 is: 1,880.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,331.80 : 4,999.56 = 1,253.28 : x
  2. Step 2: Convert to fraction form
    3,331.80/4,999.56 = 1,253.28/x
  3. Step 3: Cross multiply
    3,331.80x = 4,999.56 × 1,253.28
  4. Step 4: Simplify right side
    3,331.80x = 6,265,848.56
  5. Step 5: Solve for x
    x = 6,265,848.56/3,331.80
  6. Step 6: Final answer
    x = 1,880.62

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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.