Home / 2,647.77-3,966.75-1,329.98

Finding the Fourth Proportional to 2,647.77, 3,966.75 and 1,329.98

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Solution

The fourth proportional to 2,647.77, 3,966.75 and 1,329.98 is: 1,992.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,647.77 : 3,966.75 = 1,329.98 : x
  2. Step 2: Convert to fraction form
    2,647.77/3,966.75 = 1,329.98/x
  3. Step 3: Cross multiply
    2,647.77x = 3,966.75 × 1,329.98
  4. Step 4: Simplify right side
    2,647.77x = 5,275,678.33
  5. Step 5: Solve for x
    x = 5,275,678.33/2,647.77
  6. Step 6: Final answer
    x = 1,992.50

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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.