Home / 5,426.87-7,489.01-3,188.99

Finding the Fourth Proportional to 5,426.87, 7,489.01 and 3,188.99

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Solution

The fourth proportional to 5,426.87, 7,489.01 and 3,188.99 is: 4,400.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,426.87 : 7,489.01 = 3,188.99 : x
  2. Step 2: Convert to fraction form
    5,426.87/7,489.01 = 3,188.99/x
  3. Step 3: Cross multiply
    5,426.87x = 7,489.01 × 3,188.99
  4. Step 4: Simplify right side
    5,426.87x = 23,882,404.69
  5. Step 5: Solve for x
    x = 23,882,404.69/5,426.87
  6. Step 6: Final answer
    x = 4,400.77

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.