Home / 2,949.90-4,072.14-1,953.42

Finding the Fourth Proportional to 2,949.90, 4,072.14 and 1,953.42

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Solution

The fourth proportional to 2,949.90, 4,072.14 and 1,953.42 is: 2,696.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,949.90 : 4,072.14 = 1,953.42 : x
  2. Step 2: Convert to fraction form
    2,949.90/4,072.14 = 1,953.42/x
  3. Step 3: Cross multiply
    2,949.90x = 4,072.14 × 1,953.42
  4. Step 4: Simplify right side
    2,949.90x = 7,954,599.72
  5. Step 5: Solve for x
    x = 7,954,599.72/2,949.90
  6. Step 6: Final answer
    x = 2,696.57

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1.5x scale

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.