Home / 5,143.81-7,098.46-2,785.97

Finding the Fourth Proportional to 5,143.81, 7,098.46 and 2,785.97

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Solution

The fourth proportional to 5,143.81, 7,098.46 and 2,785.97 is: 3,844.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,143.81 : 7,098.46 = 2,785.97 : x
  2. Step 2: Convert to fraction form
    5,143.81/7,098.46 = 2,785.97/x
  3. Step 3: Cross multiply
    5,143.81x = 7,098.46 × 2,785.97
  4. Step 4: Simplify right side
    5,143.81x = 19,776,096.61
  5. Step 5: Solve for x
    x = 19,776,096.61/5,143.81
  6. Step 6: Final answer
    x = 3,844.64

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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.