Home / 7,785.65-11,675.41-3,400.04

Finding the Fourth Proportional to 7,785.65, 11,675.41 and 3,400.04

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Solution

The fourth proportional to 7,785.65, 11,675.41 and 3,400.04 is: 5,098.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,785.65 : 11,675.41 = 3,400.04 : x
  2. Step 2: Convert to fraction form
    7,785.65/11,675.41 = 3,400.04/x
  3. Step 3: Cross multiply
    7,785.65x = 11,675.41 × 3,400.04
  4. Step 4: Simplify right side
    7,785.65x = 39,696,881.70
  5. Step 5: Solve for x
    x = 39,696,881.70/7,785.65
  6. Step 6: Final answer
    x = 5,098.72

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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.