Home / 2,991-4,127.58-1,944.84

Finding the Fourth Proportional to 2,991, 4,127.58 and 1,944.84

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Solution

The fourth proportional to 2,991, 4,127.58 and 1,944.84 is: 2,683.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,991 : 4,127.58 = 1,944.84 : x
  2. Step 2: Convert to fraction form
    2,991/4,127.58 = 1,944.84/x
  3. Step 3: Cross multiply
    2,991x = 4,127.58 × 1,944.84
  4. Step 4: Simplify right side
    2,991x = 8,027,482.69
  5. Step 5: Solve for x
    x = 8,027,482.69/2,991
  6. Step 6: Final answer
    x = 2,683.88

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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.