Home / 3,368.90-5,052.68-1,287.48

Finding the Fourth Proportional to 3,368.90, 5,052.68 and 1,287.48

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Solution

The fourth proportional to 3,368.90, 5,052.68 and 1,287.48 is: 1,930.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,368.90 : 5,052.68 = 1,287.48 : x
  2. Step 2: Convert to fraction form
    3,368.90/5,052.68 = 1,287.48/x
  3. Step 3: Cross multiply
    3,368.90x = 5,052.68 × 1,287.48
  4. Step 4: Simplify right side
    3,368.90x = 6,505,224.45
  5. Step 5: Solve for x
    x = 6,505,224.45/3,368.90
  6. Step 6: Final answer
    x = 1,930.96

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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.