Home / 3,319.31-4,978.56-1,371.26

Finding the Fourth Proportional to 3,319.31, 4,978.56 and 1,371.26

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Solution

The fourth proportional to 3,319.31, 4,978.56 and 1,371.26 is: 2,056.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,319.31 : 4,978.56 = 1,371.26 : x
  2. Step 2: Convert to fraction form
    3,319.31/4,978.56 = 1,371.26/x
  3. Step 3: Cross multiply
    3,319.31x = 4,978.56 × 1,371.26
  4. Step 4: Simplify right side
    3,319.31x = 6,826,900.19
  5. Step 5: Solve for x
    x = 6,826,900.19/3,319.31
  6. Step 6: Final answer
    x = 2,056.72

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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.