Home / 3,169.20-4,375.08-2,919.36

Finding the Fourth Proportional to 3,169.20, 4,375.08 and 2,919.36

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Solution

The fourth proportional to 3,169.20, 4,375.08 and 2,919.36 is: 4,030.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,169.20 : 4,375.08 = 2,919.36 : x
  2. Step 2: Convert to fraction form
    3,169.20/4,375.08 = 2,919.36/x
  3. Step 3: Cross multiply
    3,169.20x = 4,375.08 × 2,919.36
  4. Step 4: Simplify right side
    3,169.20x = 12,772,433.55
  5. Step 5: Solve for x
    x = 12,772,433.55/3,169.20
  6. Step 6: Final answer
    x = 4,030.18

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.