Home / 5,685.80-8,529.61-2,399.38

Finding the Fourth Proportional to 5,685.80, 8,529.61 and 2,399.38

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Solution

The fourth proportional to 5,685.80, 8,529.61 and 2,399.38 is: 3,599.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,685.80 : 8,529.61 = 2,399.38 : x
  2. Step 2: Convert to fraction form
    5,685.80/8,529.61 = 2,399.38/x
  3. Step 3: Cross multiply
    5,685.80x = 8,529.61 × 2,399.38
  4. Step 4: Simplify right side
    5,685.80x = 20,465,757.32
  5. Step 5: Solve for x
    x = 20,465,757.32/5,685.80
  6. Step 6: Final answer
    x = 3,599.45

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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.