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Finding the Fourth Proportional to 2,763.13, 4,144.69 and 711.13

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Solution

The fourth proportional to 2,763.13, 4,144.69 and 711.13 is: 1,066.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,763.13 : 4,144.69 = 711.13 : x
  2. Step 2: Convert to fraction form
    2,763.13/4,144.69 = 711.13/x
  3. Step 3: Cross multiply
    2,763.13x = 4,144.69 × 711.13
  4. Step 4: Simplify right side
    2,763.13x = 2,947,413.40
  5. Step 5: Solve for x
    x = 2,947,413.40/2,763.13
  6. Step 6: Final answer
    x = 1,066.69

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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.