Home / 5,192.30-7,788.35-3,112.88

Finding the Fourth Proportional to 5,192.30, 7,788.35 and 3,112.88

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Solution

The fourth proportional to 5,192.30, 7,788.35 and 3,112.88 is: 4,669.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,192.30 : 7,788.35 = 3,112.88 : x
  2. Step 2: Convert to fraction form
    5,192.30/7,788.35 = 3,112.88/x
  3. Step 3: Cross multiply
    5,192.30x = 7,788.35 × 3,112.88
  4. Step 4: Simplify right side
    5,192.30x = 24,244,211.60
  5. Step 5: Solve for x
    x = 24,244,211.60/5,192.30
  6. Step 6: Final answer
    x = 4,669.26

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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.