Home / 7,280.60-10,922.70-3,118.64

Finding the Fourth Proportional to 7,280.60, 10,922.70 and 3,118.64

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Solution

The fourth proportional to 7,280.60, 10,922.70 and 3,118.64 is: 4,678.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,280.60 : 10,922.70 = 3,118.64 : x
  2. Step 2: Convert to fraction form
    7,280.60/10,922.70 = 3,118.64/x
  3. Step 3: Cross multiply
    7,280.60x = 10,922.70 × 3,118.64
  4. Step 4: Simplify right side
    7,280.60x = 34,063,969.13
  5. Step 5: Solve for x
    x = 34,063,969.13/7,280.60
  6. Step 6: Final answer
    x = 4,678.73

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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.