Home / 2,721.78-4,077.16-1,795.04

Finding the Fourth Proportional to 2,721.78, 4,077.16 and 1,795.04

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Solution

The fourth proportional to 2,721.78, 4,077.16 and 1,795.04 is: 2,688.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,721.78 : 4,077.16 = 1,795.04 : x
  2. Step 2: Convert to fraction form
    2,721.78/4,077.16 = 1,795.04/x
  3. Step 3: Cross multiply
    2,721.78x = 4,077.16 × 1,795.04
  4. Step 4: Simplify right side
    2,721.78x = 7,318,665.29
  5. Step 5: Solve for x
    x = 7,318,665.29/2,721.78
  6. Step 6: Final answer
    x = 2,688.93

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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.