Home / 5,678.75-8,516.46-2,391.77

Finding the Fourth Proportional to 5,678.75, 8,516.46 and 2,391.77

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Solution

The fourth proportional to 5,678.75, 8,516.46 and 2,391.77 is: 3,586.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,678.75 : 8,516.46 = 2,391.77 : x
  2. Step 2: Convert to fraction form
    5,678.75/8,516.46 = 2,391.77/x
  3. Step 3: Cross multiply
    5,678.75x = 8,516.46 × 2,391.77
  4. Step 4: Simplify right side
    5,678.75x = 20,369,413.53
  5. Step 5: Solve for x
    x = 20,369,413.53/5,678.75
  6. Step 6: Final answer
    x = 3,586.95

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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.