Home / 5,456.60-8,194.80-4,776.20

Finding the Fourth Proportional to 5,456.60, 8,194.80 and 4,776.20

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Solution

The fourth proportional to 5,456.60, 8,194.80 and 4,776.20 is: 7,172.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,456.60 : 8,194.80 = 4,776.20 : x
  2. Step 2: Convert to fraction form
    5,456.60/8,194.80 = 4,776.20/x
  3. Step 3: Cross multiply
    5,456.60x = 8,194.80 × 4,776.20
  4. Step 4: Simplify right side
    5,456.60x = 39,140,003.76
  5. Step 5: Solve for x
    x = 39,140,003.76/5,456.60
  6. Step 6: Final answer
    x = 7,172.97

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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.