Home / 5,438.44-8,157.66-4,292.20

Finding the Fourth Proportional to 5,438.44, 8,157.66 and 4,292.20

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Solution

The fourth proportional to 5,438.44, 8,157.66 and 4,292.20 is: 6,438.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,438.44 : 8,157.66 = 4,292.20 : x
  2. Step 2: Convert to fraction form
    5,438.44/8,157.66 = 4,292.20/x
  3. Step 3: Cross multiply
    5,438.44x = 8,157.66 × 4,292.20
  4. Step 4: Simplify right side
    5,438.44x = 35,014,308.25
  5. Step 5: Solve for x
    x = 35,014,308.25/5,438.44
  6. Step 6: Final answer
    x = 6,438.30

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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.