Home / 3,138.24-4,330.80-1,740.96

Finding the Fourth Proportional to 3,138.24, 4,330.80 and 1,740.96

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Solution

The fourth proportional to 3,138.24, 4,330.80 and 1,740.96 is: 2,402.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,138.24 : 4,330.80 = 1,740.96 : x
  2. Step 2: Convert to fraction form
    3,138.24/4,330.80 = 1,740.96/x
  3. Step 3: Cross multiply
    3,138.24x = 4,330.80 × 1,740.96
  4. Step 4: Simplify right side
    3,138.24x = 7,539,749.57
  5. Step 5: Solve for x
    x = 7,539,749.57/3,138.24
  6. Step 6: Final answer
    x = 2,402.54

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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.