Home / 2,798.61-4,195.68-1,812.43

Finding the Fourth Proportional to 2,798.61, 4,195.68 and 1,812.43

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Solution

The fourth proportional to 2,798.61, 4,195.68 and 1,812.43 is: 2,717.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,798.61 : 4,195.68 = 1,812.43 : x
  2. Step 2: Convert to fraction form
    2,798.61/4,195.68 = 1,812.43/x
  3. Step 3: Cross multiply
    2,798.61x = 4,195.68 × 1,812.43
  4. Step 4: Simplify right side
    2,798.61x = 7,604,376.30
  5. Step 5: Solve for x
    x = 7,604,376.30/2,798.61
  6. Step 6: Final answer
    x = 2,717.20

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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.