Home / 7,179.75-10,769.63-1,985.63

Finding the Fourth Proportional to 7,179.75, 10,769.63 and 1,985.63

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Solution

The fourth proportional to 7,179.75, 10,769.63 and 1,985.63 is: 2,978.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,179.75 : 10,769.63 = 1,985.63 : x
  2. Step 2: Convert to fraction form
    7,179.75/10,769.63 = 1,985.63/x
  3. Step 3: Cross multiply
    7,179.75x = 10,769.63 × 1,985.63
  4. Step 4: Simplify right side
    7,179.75x = 21,384,436.64
  5. Step 5: Solve for x
    x = 21,384,436.64/7,179.75
  6. Step 6: Final answer
    x = 2,978.44

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Similar ratio
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1.5x scale

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.