Home / 5,729.36-8,589.72-2,439.68

Finding the Fourth Proportional to 5,729.36, 8,589.72 and 2,439.68

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Solution

The fourth proportional to 5,729.36, 8,589.72 and 2,439.68 is: 3,657.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,729.36 : 8,589.72 = 2,439.68 : x
  2. Step 2: Convert to fraction form
    5,729.36/8,589.72 = 2,439.68/x
  3. Step 3: Cross multiply
    5,729.36x = 8,589.72 × 2,439.68
  4. Step 4: Simplify right side
    5,729.36x = 20,956,168.09
  5. Step 5: Solve for x
    x = 20,956,168.09/5,729.36
  6. Step 6: Final answer
    x = 3,657.68

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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.