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Finding the Fourth Proportional to 1,862.04, 2,791.98 and 629.04

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Solution

The fourth proportional to 1,862.04, 2,791.98 and 629.04 is: 943.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,862.04 : 2,791.98 = 629.04 : x
  2. Step 2: Convert to fraction form
    1,862.04/2,791.98 = 629.04/x
  3. Step 3: Cross multiply
    1,862.04x = 2,791.98 × 629.04
  4. Step 4: Simplify right side
    1,862.04x = 1,756,267.10
  5. Step 5: Solve for x
    x = 1,756,267.10/1,862.04
  6. Step 6: Final answer
    x = 943.20

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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.