Home / 3,758.53-5,186.30-2,079.70

Finding the Fourth Proportional to 3,758.53, 5,186.30 and 2,079.70

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Solution

The fourth proportional to 3,758.53, 5,186.30 and 2,079.70 is: 2,869.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,758.53 : 5,186.30 = 2,079.70 : x
  2. Step 2: Convert to fraction form
    3,758.53/5,186.30 = 2,079.70/x
  3. Step 3: Cross multiply
    3,758.53x = 5,186.30 × 2,079.70
  4. Step 4: Simplify right side
    3,758.53x = 10,785,911.78
  5. Step 5: Solve for x
    x = 10,785,911.78/3,758.53
  6. Step 6: Final answer
    x = 2,869.72

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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.