Home / 7,940.60-11,909.98-2,097.66

Finding the Fourth Proportional to 7,940.60, 11,909.98 and 2,097.66

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Solution

The fourth proportional to 7,940.60, 11,909.98 and 2,097.66 is: 3,146.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,940.60 : 11,909.98 = 2,097.66 : x
  2. Step 2: Convert to fraction form
    7,940.60/11,909.98 = 2,097.66/x
  3. Step 3: Cross multiply
    7,940.60x = 11,909.98 × 2,097.66
  4. Step 4: Simplify right side
    7,940.60x = 24,983,088.65
  5. Step 5: Solve for x
    x = 24,983,088.65/7,940.60
  6. Step 6: Final answer
    x = 3,146.25

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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.