Home / 3,769.28-5,205.67-2,939.84

Finding the Fourth Proportional to 3,769.28, 5,205.67 and 2,939.84

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Solution

The fourth proportional to 3,769.28, 5,205.67 and 2,939.84 is: 4,060.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,769.28 : 5,205.67 = 2,939.84 : x
  2. Step 2: Convert to fraction form
    3,769.28/5,205.67 = 2,939.84/x
  3. Step 3: Cross multiply
    3,769.28x = 5,205.67 × 2,939.84
  4. Step 4: Simplify right side
    3,769.28x = 15,303,803.51
  5. Step 5: Solve for x
    x = 15,303,803.51/3,769.28
  6. Step 6: Final answer
    x = 4,060.15

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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.