Home / 5,156.91-7,736.66-2,816.28

Finding the Fourth Proportional to 5,156.91, 7,736.66 and 2,816.28

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Solution

The fourth proportional to 5,156.91, 7,736.66 and 2,816.28 is: 4,225.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,156.91 : 7,736.66 = 2,816.28 : x
  2. Step 2: Convert to fraction form
    5,156.91/7,736.66 = 2,816.28/x
  3. Step 3: Cross multiply
    5,156.91x = 7,736.66 × 2,816.28
  4. Step 4: Simplify right side
    5,156.91x = 21,788,586.74
  5. Step 5: Solve for x
    x = 21,788,586.74/5,156.91
  6. Step 6: Final answer
    x = 4,225.12

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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.