Home / 6,471.24-9,707.76-2,087.28

Finding the Fourth Proportional to 6,471.24, 9,707.76 and 2,087.28

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Solution

The fourth proportional to 6,471.24, 9,707.76 and 2,087.28 is: 3,131.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,471.24 : 9,707.76 = 2,087.28 : x
  2. Step 2: Convert to fraction form
    6,471.24/9,707.76 = 2,087.28/x
  3. Step 3: Cross multiply
    6,471.24x = 9,707.76 × 2,087.28
  4. Step 4: Simplify right side
    6,471.24x = 20,262,813.29
  5. Step 5: Solve for x
    x = 20,262,813.29/6,471.24
  6. Step 6: Final answer
    x = 3,131.21

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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.