Home / 5,718.29-7,891.07-3,200.63

Finding the Fourth Proportional to 5,718.29, 7,891.07 and 3,200.63

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Solution

The fourth proportional to 5,718.29, 7,891.07 and 3,200.63 is: 4,416.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,718.29 : 7,891.07 = 3,200.63 : x
  2. Step 2: Convert to fraction form
    5,718.29/7,891.07 = 3,200.63/x
  3. Step 3: Cross multiply
    5,718.29x = 7,891.07 × 3,200.63
  4. Step 4: Simplify right side
    5,718.29x = 25,256,339.92
  5. Step 5: Solve for x
    x = 25,256,339.92/5,718.29
  6. Step 6: Final answer
    x = 4,416.77

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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.