Home / 2,150.20-2,965.32-1,403.92

Finding the Fourth Proportional to 2,150.20, 2,965.32 and 1,403.92

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Solution

The fourth proportional to 2,150.20, 2,965.32 and 1,403.92 is: 1,936.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,150.20 : 2,965.32 = 1,403.92 : x
  2. Step 2: Convert to fraction form
    2,150.20/2,965.32 = 1,403.92/x
  3. Step 3: Cross multiply
    2,150.20x = 2,965.32 × 1,403.92
  4. Step 4: Simplify right side
    2,150.20x = 4,163,072.05
  5. Step 5: Solve for x
    x = 4,163,072.05/2,150.20
  6. Step 6: Final answer
    x = 1,936.13

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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.