Home / 2,130.46-3,192.96-1,719.78

Finding the Fourth Proportional to 2,130.46, 3,192.96 and 1,719.78

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Solution

The fourth proportional to 2,130.46, 3,192.96 and 1,719.78 is: 2,577.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,130.46 : 3,192.96 = 1,719.78 : x
  2. Step 2: Convert to fraction form
    2,130.46/3,192.96 = 1,719.78/x
  3. Step 3: Cross multiply
    2,130.46x = 3,192.96 × 1,719.78
  4. Step 4: Simplify right side
    2,130.46x = 5,491,188.75
  5. Step 5: Solve for x
    x = 5,491,188.75/2,130.46
  6. Step 6: Final answer
    x = 2,577.47

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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.