Home / 6,489.21-9,718.20-3,707.46

Finding the Fourth Proportional to 6,489.21, 9,718.20 and 3,707.46

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Solution

The fourth proportional to 6,489.21, 9,718.20 and 3,707.46 is: 5,552.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,489.21 : 9,718.20 = 3,707.46 : x
  2. Step 2: Convert to fraction form
    6,489.21/9,718.20 = 3,707.46/x
  3. Step 3: Cross multiply
    6,489.21x = 9,718.20 × 3,707.46
  4. Step 4: Simplify right side
    6,489.21x = 36,029,837.77
  5. Step 5: Solve for x
    x = 36,029,837.77/6,489.21
  6. Step 6: Final answer
    x = 5,552.27

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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.