Home / 2,887.96-3,985.50-1,629.52

Finding the Fourth Proportional to 2,887.96, 3,985.50 and 1,629.52

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Solution

The fourth proportional to 2,887.96, 3,985.50 and 1,629.52 is: 2,248.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,887.96 : 3,985.50 = 1,629.52 : x
  2. Step 2: Convert to fraction form
    2,887.96/3,985.50 = 1,629.52/x
  3. Step 3: Cross multiply
    2,887.96x = 3,985.50 × 1,629.52
  4. Step 4: Simplify right side
    2,887.96x = 6,494,451.96
  5. Step 5: Solve for x
    x = 6,494,451.96/2,887.96
  6. Step 6: Final answer
    x = 2,248.80

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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.