Home / 2,798.28-4,189.32-1,929.96

Finding the Fourth Proportional to 2,798.28, 4,189.32 and 1,929.96

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Solution

The fourth proportional to 2,798.28, 4,189.32 and 1,929.96 is: 2,889.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,798.28 : 4,189.32 = 1,929.96 : x
  2. Step 2: Convert to fraction form
    2,798.28/4,189.32 = 1,929.96/x
  3. Step 3: Cross multiply
    2,798.28x = 4,189.32 × 1,929.96
  4. Step 4: Simplify right side
    2,798.28x = 8,085,220.03
  5. Step 5: Solve for x
    x = 8,085,220.03/2,798.28
  6. Step 6: Final answer
    x = 2,889.35

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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.