Home / 2,119.20-3,175.32-2,038.20

Finding the Fourth Proportional to 2,119.20, 3,175.32 and 2,038.20

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Solution

The fourth proportional to 2,119.20, 3,175.32 and 2,038.20 is: 3,053.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,119.20 : 3,175.32 = 2,038.20 : x
  2. Step 2: Convert to fraction form
    2,119.20/3,175.32 = 2,038.20/x
  3. Step 3: Cross multiply
    2,119.20x = 3,175.32 × 2,038.20
  4. Step 4: Simplify right side
    2,119.20x = 6,471,937.22
  5. Step 5: Solve for x
    x = 6,471,937.22/2,119.20
  6. Step 6: Final answer
    x = 3,053.95

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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.