Home / 5,705.91-7,876.44-3,718.17

Finding the Fourth Proportional to 5,705.91, 7,876.44 and 3,718.17

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Solution

The fourth proportional to 5,705.91, 7,876.44 and 3,718.17 is: 5,132.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,705.91 : 7,876.44 = 3,718.17 : x
  2. Step 2: Convert to fraction form
    5,705.91/7,876.44 = 3,718.17/x
  3. Step 3: Cross multiply
    5,705.91x = 7,876.44 × 3,718.17
  4. Step 4: Simplify right side
    5,705.91x = 29,285,942.91
  5. Step 5: Solve for x
    x = 29,285,942.91/5,705.91
  6. Step 6: Final answer
    x = 5,132.56

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1.5x scale

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.