Home / 2,137.66-2,949.72-1,241.19

Finding the Fourth Proportional to 2,137.66, 2,949.72 and 1,241.19

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Solution

The fourth proportional to 2,137.66, 2,949.72 and 1,241.19 is: 1,712.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,137.66 : 2,949.72 = 1,241.19 : x
  2. Step 2: Convert to fraction form
    2,137.66/2,949.72 = 1,241.19/x
  3. Step 3: Cross multiply
    2,137.66x = 2,949.72 × 1,241.19
  4. Step 4: Simplify right side
    2,137.66x = 3,661,158.31
  5. Step 5: Solve for x
    x = 3,661,158.31/2,137.66
  6. Step 6: Final answer
    x = 1,712.70

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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.