Home / 3,353.80-5,029.08-1,405.48

Finding the Fourth Proportional to 3,353.80, 5,029.08 and 1,405.48

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Solution

The fourth proportional to 3,353.80, 5,029.08 and 1,405.48 is: 2,107.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,353.80 : 5,029.08 = 1,405.48 : x
  2. Step 2: Convert to fraction form
    3,353.80/5,029.08 = 1,405.48/x
  3. Step 3: Cross multiply
    3,353.80x = 5,029.08 × 1,405.48
  4. Step 4: Simplify right side
    3,353.80x = 7,068,253.52
  5. Step 5: Solve for x
    x = 7,068,253.52/3,353.80
  6. Step 6: Final answer
    x = 2,107.54

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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.