Home / 2,942.18-4,413.70-862.38

Finding the Fourth Proportional to 2,942.18, 4,413.70 and 862.38

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Solution

The fourth proportional to 2,942.18, 4,413.70 and 862.38 is: 1,293.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,942.18 : 4,413.70 = 862.38 : x
  2. Step 2: Convert to fraction form
    2,942.18/4,413.70 = 862.38/x
  3. Step 3: Cross multiply
    2,942.18x = 4,413.70 × 862.38
  4. Step 4: Simplify right side
    2,942.18x = 3,806,286.61
  5. Step 5: Solve for x
    x = 3,806,286.61/2,942.18
  6. Step 6: Final answer
    x = 1,293.70

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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.