Home / 7,785.84-11,672.13-3,400.02

Finding the Fourth Proportional to 7,785.84, 11,672.13 and 3,400.02

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Solution

The fourth proportional to 7,785.84, 11,672.13 and 3,400.02 is: 5,097.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,785.84 : 11,672.13 = 3,400.02 : x
  2. Step 2: Convert to fraction form
    7,785.84/11,672.13 = 3,400.02/x
  3. Step 3: Cross multiply
    7,785.84x = 11,672.13 × 3,400.02
  4. Step 4: Simplify right side
    7,785.84x = 39,685,475.44
  5. Step 5: Solve for x
    x = 39,685,475.44/7,785.84
  6. Step 6: Final answer
    x = 5,097.13

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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.