Home / 6,478.79-9,717.72-2,318.02

Finding the Fourth Proportional to 6,478.79, 9,717.72 and 2,318.02

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Solution

The fourth proportional to 6,478.79, 9,717.72 and 2,318.02 is: 3,476.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,478.79 : 9,717.72 = 2,318.02 : x
  2. Step 2: Convert to fraction form
    6,478.79/9,717.72 = 2,318.02/x
  3. Step 3: Cross multiply
    6,478.79x = 9,717.72 × 2,318.02
  4. Step 4: Simplify right side
    6,478.79x = 22,525,849.37
  5. Step 5: Solve for x
    x = 22,525,849.37/6,478.79
  6. Step 6: Final answer
    x = 3,476.86

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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.