Home / 3,319.16-4,970.78-1,929.56

Finding the Fourth Proportional to 3,319.16, 4,970.78 and 1,929.56

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Solution

The fourth proportional to 3,319.16, 4,970.78 and 1,929.56 is: 2,889.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,319.16 : 4,970.78 = 1,929.56 : x
  2. Step 2: Convert to fraction form
    3,319.16/4,970.78 = 1,929.56/x
  3. Step 3: Cross multiply
    3,319.16x = 4,970.78 × 1,929.56
  4. Step 4: Simplify right side
    3,319.16x = 9,591,418.26
  5. Step 5: Solve for x
    x = 9,591,418.26/3,319.16
  6. Step 6: Final answer
    x = 2,889.71

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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.