Home / 5,128.56-7,696.26-2,207.10

Finding the Fourth Proportional to 5,128.56, 7,696.26 and 2,207.10

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Solution

The fourth proportional to 5,128.56, 7,696.26 and 2,207.10 is: 3,312.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,128.56 : 7,696.26 = 2,207.10 : x
  2. Step 2: Convert to fraction form
    5,128.56/7,696.26 = 2,207.10/x
  3. Step 3: Cross multiply
    5,128.56x = 7,696.26 × 2,207.10
  4. Step 4: Simplify right side
    5,128.56x = 16,986,415.45
  5. Step 5: Solve for x
    x = 16,986,415.45/5,128.56
  6. Step 6: Final answer
    x = 3,312.12

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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.