Home / 7,772.28-11,657.30-2,577.48

Finding the Fourth Proportional to 7,772.28, 11,657.30 and 2,577.48

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Solution

The fourth proportional to 7,772.28, 11,657.30 and 2,577.48 is: 3,865.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,772.28 : 11,657.30 = 2,577.48 : x
  2. Step 2: Convert to fraction form
    7,772.28/11,657.30 = 2,577.48/x
  3. Step 3: Cross multiply
    7,772.28x = 11,657.30 × 2,577.48
  4. Step 4: Simplify right side
    7,772.28x = 30,046,457.60
  5. Step 5: Solve for x
    x = 30,046,457.60/7,772.28
  6. Step 6: Final answer
    x = 3,865.85

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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.