Home / 3,919.10-5,407.92-2,325.18

Finding the Fourth Proportional to 3,919.10, 5,407.92 and 2,325.18

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Solution

The fourth proportional to 3,919.10, 5,407.92 and 2,325.18 is: 3,208.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,919.10 : 5,407.92 = 2,325.18 : x
  2. Step 2: Convert to fraction form
    3,919.10/5,407.92 = 2,325.18/x
  3. Step 3: Cross multiply
    3,919.10x = 5,407.92 × 2,325.18
  4. Step 4: Simplify right side
    3,919.10x = 12,574,367.15
  5. Step 5: Solve for x
    x = 12,574,367.15/3,919.10
  6. Step 6: Final answer
    x = 3,208.48

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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.