Home / 2,798.22-4,192.66-1,315.85

Finding the Fourth Proportional to 2,798.22, 4,192.66 and 1,315.85

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Solution

The fourth proportional to 2,798.22, 4,192.66 and 1,315.85 is: 1,971.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,798.22 : 4,192.66 = 1,315.85 : x
  2. Step 2: Convert to fraction form
    2,798.22/4,192.66 = 1,315.85/x
  3. Step 3: Cross multiply
    2,798.22x = 4,192.66 × 1,315.85
  4. Step 4: Simplify right side
    2,798.22x = 5,516,892.34
  5. Step 5: Solve for x
    x = 5,516,892.34/2,798.22
  6. Step 6: Final answer
    x = 1,971.57

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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.