Home / 2,887.98-3,985.62-1,629.24

Finding the Fourth Proportional to 2,887.98, 3,985.62 and 1,629.24

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Solution

The fourth proportional to 2,887.98, 3,985.62 and 1,629.24 is: 2,248.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,887.98 : 3,985.62 = 1,629.24 : x
  2. Step 2: Convert to fraction form
    2,887.98/3,985.62 = 1,629.24/x
  3. Step 3: Cross multiply
    2,887.98x = 3,985.62 × 1,629.24
  4. Step 4: Simplify right side
    2,887.98x = 6,493,531.53
  5. Step 5: Solve for x
    x = 6,493,531.53/2,887.98
  6. Step 6: Final answer
    x = 2,248.47

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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.