Home / 2,319.12-3,477.75-758.75

Finding the Fourth Proportional to 2,319.12, 3,477.75 and 758.75

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Solution

The fourth proportional to 2,319.12, 3,477.75 and 758.75 is: 1,137.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,319.12 : 3,477.75 = 758.75 : x
  2. Step 2: Convert to fraction form
    2,319.12/3,477.75 = 758.75/x
  3. Step 3: Cross multiply
    2,319.12x = 3,477.75 × 758.75
  4. Step 4: Simplify right side
    2,319.12x = 2,638,725.42
  5. Step 5: Solve for x
    x = 2,638,725.42/2,319.12
  6. Step 6: Final answer
    x = 1,137.81

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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.