Home / 5,407.40-8,119.20-4,176.20

Finding the Fourth Proportional to 5,407.40, 8,119.20 and 4,176.20

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Solution

The fourth proportional to 5,407.40, 8,119.20 and 4,176.20 is: 6,270.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,407.40 : 8,119.20 = 4,176.20 : x
  2. Step 2: Convert to fraction form
    5,407.40/8,119.20 = 4,176.20/x
  3. Step 3: Cross multiply
    5,407.40x = 8,119.20 × 4,176.20
  4. Step 4: Simplify right side
    5,407.40x = 33,907,403.04
  5. Step 5: Solve for x
    x = 33,907,403.04/5,407.40
  6. Step 6: Final answer
    x = 6,270.56

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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.