Home / 2,928.15-4,391.31-1,696.14

Finding the Fourth Proportional to 2,928.15, 4,391.31 and 1,696.14

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Solution

The fourth proportional to 2,928.15, 4,391.31 and 1,696.14 is: 2,543.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,928.15 : 4,391.31 = 1,696.14 : x
  2. Step 2: Convert to fraction form
    2,928.15/4,391.31 = 1,696.14/x
  3. Step 3: Cross multiply
    2,928.15x = 4,391.31 × 1,696.14
  4. Step 4: Simplify right side
    2,928.15x = 7,448,282.90
  5. Step 5: Solve for x
    x = 7,448,282.90/2,928.15
  6. Step 6: Final answer
    x = 2,543.68

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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.