Home / 7,285.32-10,927.92-2,091.20

Finding the Fourth Proportional to 7,285.32, 10,927.92 and 2,091.20

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Solution

The fourth proportional to 7,285.32, 10,927.92 and 2,091.20 is: 3,136.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,285.32 : 10,927.92 = 2,091.20 : x
  2. Step 2: Convert to fraction form
    7,285.32/10,927.92 = 2,091.20/x
  3. Step 3: Cross multiply
    7,285.32x = 10,927.92 × 2,091.20
  4. Step 4: Simplify right side
    7,285.32x = 22,852,466.30
  5. Step 5: Solve for x
    x = 22,852,466.30/7,285.32
  6. Step 6: Final answer
    x = 3,136.78

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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.