Home / 3,152.19-4,728.03-1,919.29

Finding the Fourth Proportional to 3,152.19, 4,728.03 and 1,919.29

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Solution

The fourth proportional to 3,152.19, 4,728.03 and 1,919.29 is: 2,878.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,152.19 : 4,728.03 = 1,919.29 : x
  2. Step 2: Convert to fraction form
    3,152.19/4,728.03 = 1,919.29/x
  3. Step 3: Cross multiply
    3,152.19x = 4,728.03 × 1,919.29
  4. Step 4: Simplify right side
    3,152.19x = 9,074,460.70
  5. Step 5: Solve for x
    x = 9,074,460.70/3,152.19
  6. Step 6: Final answer
    x = 2,878.78

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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.