Home / 2,176.24-3,261.30-1,687

Finding the Fourth Proportional to 2,176.24, 3,261.30 and 1,687

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Solution

The fourth proportional to 2,176.24, 3,261.30 and 1,687 is: 2,528.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,176.24 : 3,261.30 = 1,687 : x
  2. Step 2: Convert to fraction form
    2,176.24/3,261.30 = 1,687/x
  3. Step 3: Cross multiply
    2,176.24x = 3,261.30 × 1,687
  4. Step 4: Simplify right side
    2,176.24x = 5,501,813.10
  5. Step 5: Solve for x
    x = 5,501,813.10/2,176.24
  6. Step 6: Final answer
    x = 2,528.13

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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.