Home / 3,394.26-5,087.34-1,931.40

Finding the Fourth Proportional to 3,394.26, 5,087.34 and 1,931.40

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Solution

The fourth proportional to 3,394.26, 5,087.34 and 1,931.40 is: 2,894.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,394.26 : 5,087.34 = 1,931.40 : x
  2. Step 2: Convert to fraction form
    3,394.26/5,087.34 = 1,931.40/x
  3. Step 3: Cross multiply
    3,394.26x = 5,087.34 × 1,931.40
  4. Step 4: Simplify right side
    3,394.26x = 9,825,688.48
  5. Step 5: Solve for x
    x = 9,825,688.48/3,394.26
  6. Step 6: Final answer
    x = 2,894.80

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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.