Home / 7,289.20-10,908.60-4,369.60

Finding the Fourth Proportional to 7,289.20, 10,908.60 and 4,369.60

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Solution

The fourth proportional to 7,289.20, 10,908.60 and 4,369.60 is: 6,539.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,289.20 : 10,908.60 = 4,369.60 : x
  2. Step 2: Convert to fraction form
    7,289.20/10,908.60 = 4,369.60/x
  3. Step 3: Cross multiply
    7,289.20x = 10,908.60 × 4,369.60
  4. Step 4: Simplify right side
    7,289.20x = 47,666,218.56
  5. Step 5: Solve for x
    x = 47,666,218.56/7,289.20
  6. Step 6: Final answer
    x = 6,539.29

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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.