Home / 7,277.70-10,902.15-3,984.90

Finding the Fourth Proportional to 7,277.70, 10,902.15 and 3,984.90

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Solution

The fourth proportional to 7,277.70, 10,902.15 and 3,984.90 is: 5,969.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,277.70 : 10,902.15 = 3,984.90 : x
  2. Step 2: Convert to fraction form
    7,277.70/10,902.15 = 3,984.90/x
  3. Step 3: Cross multiply
    7,277.70x = 10,902.15 × 3,984.90
  4. Step 4: Simplify right side
    7,277.70x = 43,443,977.54
  5. Step 5: Solve for x
    x = 43,443,977.54/7,277.70
  6. Step 6: Final answer
    x = 5,969.47

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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.