Home / 2,719.90-4,077.94-1,313.46

Finding the Fourth Proportional to 2,719.90, 4,077.94 and 1,313.46

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Solution

The fourth proportional to 2,719.90, 4,077.94 and 1,313.46 is: 1,969.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,719.90 : 4,077.94 = 1,313.46 : x
  2. Step 2: Convert to fraction form
    2,719.90/4,077.94 = 1,313.46/x
  3. Step 3: Cross multiply
    2,719.90x = 4,077.94 × 1,313.46
  4. Step 4: Simplify right side
    2,719.90x = 5,356,211.07
  5. Step 5: Solve for x
    x = 5,356,211.07/2,719.90
  6. Step 6: Final answer
    x = 1,969.27

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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.