Home / 3,534.56-5,294.76-2,128.19

Finding the Fourth Proportional to 3,534.56, 5,294.76 and 2,128.19

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Solution

The fourth proportional to 3,534.56, 5,294.76 and 2,128.19 is: 3,188.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,534.56 : 5,294.76 = 2,128.19 : x
  2. Step 2: Convert to fraction form
    3,534.56/5,294.76 = 2,128.19/x
  3. Step 3: Cross multiply
    3,534.56x = 5,294.76 × 2,128.19
  4. Step 4: Simplify right side
    3,534.56x = 11,268,244.64
  5. Step 5: Solve for x
    x = 11,268,244.64/3,534.56
  6. Step 6: Final answer
    x = 3,188.02

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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.