Home / 3,659.12-5,487.40-1,578.56

Finding the Fourth Proportional to 3,659.12, 5,487.40 and 1,578.56

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Solution

The fourth proportional to 3,659.12, 5,487.40 and 1,578.56 is: 2,367.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,659.12 : 5,487.40 = 1,578.56 : x
  2. Step 2: Convert to fraction form
    3,659.12/5,487.40 = 1,578.56/x
  3. Step 3: Cross multiply
    3,659.12x = 5,487.40 × 1,578.56
  4. Step 4: Simplify right side
    3,659.12x = 8,662,190.14
  5. Step 5: Solve for x
    x = 8,662,190.14/3,659.12
  6. Step 6: Final answer
    x = 2,367.29

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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.