Home / 3,475.15-5,213.63-1,394.78

Finding the Fourth Proportional to 3,475.15, 5,213.63 and 1,394.78

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Solution

The fourth proportional to 3,475.15, 5,213.63 and 1,394.78 is: 2,092.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,475.15 : 5,213.63 = 1,394.78 : x
  2. Step 2: Convert to fraction form
    3,475.15/5,213.63 = 1,394.78/x
  3. Step 3: Cross multiply
    3,475.15x = 5,213.63 × 1,394.78
  4. Step 4: Simplify right side
    3,475.15x = 7,271,844.27
  5. Step 5: Solve for x
    x = 7,271,844.27/3,475.15
  6. Step 6: Final answer
    x = 2,092.53

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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.