Home / 2,656.73-3,985.79-1,012.39

Finding the Fourth Proportional to 2,656.73, 3,985.79 and 1,012.39

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Solution

The fourth proportional to 2,656.73, 3,985.79 and 1,012.39 is: 1,518.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,656.73 : 3,985.79 = 1,012.39 : x
  2. Step 2: Convert to fraction form
    2,656.73/3,985.79 = 1,012.39/x
  3. Step 3: Cross multiply
    2,656.73x = 3,985.79 × 1,012.39
  4. Step 4: Simplify right side
    2,656.73x = 4,035,173.94
  5. Step 5: Solve for x
    x = 4,035,173.94/2,656.73
  6. Step 6: Final answer
    x = 1,518.85

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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.