Home / 3,412.31-5,120.15-1,562.54

Finding the Fourth Proportional to 3,412.31, 5,120.15 and 1,562.54

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Solution

The fourth proportional to 3,412.31, 5,120.15 and 1,562.54 is: 2,344.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,412.31 : 5,120.15 = 1,562.54 : x
  2. Step 2: Convert to fraction form
    3,412.31/5,120.15 = 1,562.54/x
  3. Step 3: Cross multiply
    3,412.31x = 5,120.15 × 1,562.54
  4. Step 4: Simplify right side
    3,412.31x = 8,000,405.77
  5. Step 5: Solve for x
    x = 8,000,405.77/3,412.31
  6. Step 6: Final answer
    x = 2,344.58

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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.