Home / 2,647.80-3,971.97-700.17

Finding the Fourth Proportional to 2,647.80, 3,971.97 and 700.17

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Solution

The fourth proportional to 2,647.80, 3,971.97 and 700.17 is: 1,050.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,647.80 : 3,971.97 = 700.17 : x
  2. Step 2: Convert to fraction form
    2,647.80/3,971.97 = 700.17/x
  3. Step 3: Cross multiply
    2,647.80x = 3,971.97 × 700.17
  4. Step 4: Simplify right side
    2,647.80x = 2,781,054.23
  5. Step 5: Solve for x
    x = 2,781,054.23/2,647.80
  6. Step 6: Final answer
    x = 1,050.33

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1.5x scale

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.