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Finding the Fourth Proportional to 6,478.53, 9,718.71 and 2,317.67

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Solution

The fourth proportional to 6,478.53, 9,718.71 and 2,317.67 is: 3,476.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,478.53 : 9,718.71 = 2,317.67 : x
  2. Step 2: Convert to fraction form
    6,478.53/9,718.71 = 2,317.67/x
  3. Step 3: Cross multiply
    6,478.53x = 9,718.71 × 2,317.67
  4. Step 4: Simplify right side
    6,478.53x = 22,524,714.01
  5. Step 5: Solve for x
    x = 22,524,714.01/6,478.53
  6. Step 6: Final answer
    x = 3,476.82

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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.