Home / 5,072.19-7,611.69-1,785.30

Finding the Fourth Proportional to 5,072.19, 7,611.69 and 1,785.30

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Solution

The fourth proportional to 5,072.19, 7,611.69 and 1,785.30 is: 2,679.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,072.19 : 7,611.69 = 1,785.30 : x
  2. Step 2: Convert to fraction form
    5,072.19/7,611.69 = 1,785.30/x
  3. Step 3: Cross multiply
    5,072.19x = 7,611.69 × 1,785.30
  4. Step 4: Simplify right side
    5,072.19x = 13,589,150.16
  5. Step 5: Solve for x
    x = 13,589,150.16/5,072.19
  6. Step 6: Final answer
    x = 2,679.15

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.