Home / 2,719.20-3,756-2,012.46

Finding the Fourth Proportional to 2,719.20, 3,756 and 2,012.46

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Solution

The fourth proportional to 2,719.20, 3,756 and 2,012.46 is: 2,779.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,719.20 : 3,756 = 2,012.46 : x
  2. Step 2: Convert to fraction form
    2,719.20/3,756 = 2,012.46/x
  3. Step 3: Cross multiply
    2,719.20x = 3,756 × 2,012.46
  4. Step 4: Simplify right side
    2,719.20x = 7,558,799.76
  5. Step 5: Solve for x
    x = 7,558,799.76/2,719.20
  6. Step 6: Final answer
    x = 2,779.79

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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.