Home / 5,438.24-8,158.62-1,928.06

Finding the Fourth Proportional to 5,438.24, 8,158.62 and 1,928.06

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Solution

The fourth proportional to 5,438.24, 8,158.62 and 1,928.06 is: 2,892.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,438.24 : 8,158.62 = 1,928.06 : x
  2. Step 2: Convert to fraction form
    5,438.24/8,158.62 = 1,928.06/x
  3. Step 3: Cross multiply
    5,438.24x = 8,158.62 × 1,928.06
  4. Step 4: Simplify right side
    5,438.24x = 15,730,308.88
  5. Step 5: Solve for x
    x = 15,730,308.88/5,438.24
  6. Step 6: Final answer
    x = 2,892.54

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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.