Home / 5,725.40-8,575.40-4,399.39

Finding the Fourth Proportional to 5,725.40, 8,575.40 and 4,399.39

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Solution

The fourth proportional to 5,725.40, 8,575.40 and 4,399.39 is: 6,589.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,725.40 : 8,575.40 = 4,399.39 : x
  2. Step 2: Convert to fraction form
    5,725.40/8,575.40 = 4,399.39/x
  3. Step 3: Cross multiply
    5,725.40x = 8,575.40 × 4,399.39
  4. Step 4: Simplify right side
    5,725.40x = 37,726,502.49
  5. Step 5: Solve for x
    x = 37,726,502.49/5,725.40
  6. Step 6: Final answer
    x = 6,589.33

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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.