Home / 4,927.72-6,800-2,689.52

Finding the Fourth Proportional to 4,927.72, 6,800 and 2,689.52

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Solution

The fourth proportional to 4,927.72, 6,800 and 2,689.52 is: 3,711.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,927.72 : 6,800 = 2,689.52 : x
  2. Step 2: Convert to fraction form
    4,927.72/6,800 = 2,689.52/x
  3. Step 3: Cross multiply
    4,927.72x = 6,800 × 2,689.52
  4. Step 4: Simplify right side
    4,927.72x = 18,288,736
  5. Step 5: Solve for x
    x = 18,288,736/4,927.72
  6. Step 6: Final answer
    x = 3,711.40

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.