Home / 2,857.23-3,941.82-1,862.16

Finding the Fourth Proportional to 2,857.23, 3,941.82 and 1,862.16

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Solution

The fourth proportional to 2,857.23, 3,941.82 and 1,862.16 is: 2,569.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,857.23 : 3,941.82 = 1,862.16 : x
  2. Step 2: Convert to fraction form
    2,857.23/3,941.82 = 1,862.16/x
  3. Step 3: Cross multiply
    2,857.23x = 3,941.82 × 1,862.16
  4. Step 4: Simplify right side
    2,857.23x = 7,340,299.53
  5. Step 5: Solve for x
    x = 7,340,299.53/2,857.23
  6. Step 6: Final answer
    x = 2,569.03

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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.