Home / 2,894.26-3,993.50-1,715.40

Finding the Fourth Proportional to 2,894.26, 3,993.50 and 1,715.40

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Solution

The fourth proportional to 2,894.26, 3,993.50 and 1,715.40 is: 2,366.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,894.26 : 3,993.50 = 1,715.40 : x
  2. Step 2: Convert to fraction form
    2,894.26/3,993.50 = 1,715.40/x
  3. Step 3: Cross multiply
    2,894.26x = 3,993.50 × 1,715.40
  4. Step 4: Simplify right side
    2,894.26x = 6,850,449.90
  5. Step 5: Solve for x
    x = 6,850,449.90/2,894.26
  6. Step 6: Final answer
    x = 2,366.91

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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.