Home / 2,721.24-4,078.08-2,354.40

Finding the Fourth Proportional to 2,721.24, 4,078.08 and 2,354.40

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Solution

The fourth proportional to 2,721.24, 4,078.08 and 2,354.40 is: 3,528.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,721.24 : 4,078.08 = 2,354.40 : x
  2. Step 2: Convert to fraction form
    2,721.24/4,078.08 = 2,354.40/x
  3. Step 3: Cross multiply
    2,721.24x = 4,078.08 × 2,354.40
  4. Step 4: Simplify right side
    2,721.24x = 9,601,431.55
  5. Step 5: Solve for x
    x = 9,601,431.55/2,721.24
  6. Step 6: Final answer
    x = 3,528.33

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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.