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Finding the Fourth Proportional to 6,557.28, 9,835.92 and 1,940.28

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Solution

The fourth proportional to 6,557.28, 9,835.92 and 1,940.28 is: 2,910.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,557.28 : 9,835.92 = 1,940.28 : x
  2. Step 2: Convert to fraction form
    6,557.28/9,835.92 = 1,940.28/x
  3. Step 3: Cross multiply
    6,557.28x = 9,835.92 × 1,940.28
  4. Step 4: Simplify right side
    6,557.28x = 19,084,438.86
  5. Step 5: Solve for x
    x = 19,084,438.86/6,557.28
  6. Step 6: Final answer
    x = 2,910.42

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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.