Home / 5,685.38-8,529.42-1,789.75

Finding the Fourth Proportional to 5,685.38, 8,529.42 and 1,789.75

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Solution

The fourth proportional to 5,685.38, 8,529.42 and 1,789.75 is: 2,685.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,685.38 : 8,529.42 = 1,789.75 : x
  2. Step 2: Convert to fraction form
    5,685.38/8,529.42 = 1,789.75/x
  3. Step 3: Cross multiply
    5,685.38x = 8,529.42 × 1,789.75
  4. Step 4: Simplify right side
    5,685.38x = 15,265,529.45
  5. Step 5: Solve for x
    x = 15,265,529.45/5,685.38
  6. Step 6: Final answer
    x = 2,685.05

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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.