Home / 7,339.40-10,989.66-3,869.36

Finding the Fourth Proportional to 7,339.40, 10,989.66 and 3,869.36

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Solution

The fourth proportional to 7,339.40, 10,989.66 and 3,869.36 is: 5,793.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,339.40 : 10,989.66 = 3,869.36 : x
  2. Step 2: Convert to fraction form
    7,339.40/10,989.66 = 3,869.36/x
  3. Step 3: Cross multiply
    7,339.40x = 10,989.66 × 3,869.36
  4. Step 4: Simplify right side
    7,339.40x = 42,522,950.82
  5. Step 5: Solve for x
    x = 42,522,950.82/7,339.40
  6. Step 6: Final answer
    x = 5,793.79

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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.