Home / 2,719.88-3,751.30-2,405.48

Finding the Fourth Proportional to 2,719.88, 3,751.30 and 2,405.48

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Solution

The fourth proportional to 2,719.88, 3,751.30 and 2,405.48 is: 3,317.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,719.88 : 3,751.30 = 2,405.48 : x
  2. Step 2: Convert to fraction form
    2,719.88/3,751.30 = 2,405.48/x
  3. Step 3: Cross multiply
    2,719.88x = 3,751.30 × 2,405.48
  4. Step 4: Simplify right side
    2,719.88x = 9,023,677.12
  5. Step 5: Solve for x
    x = 9,023,677.12/2,719.88
  6. Step 6: Final answer
    x = 3,317.67

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.