Home / 6,861.46-10,292.20-1,931.60

Finding the Fourth Proportional to 6,861.46, 10,292.20 and 1,931.60

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Solution

The fourth proportional to 6,861.46, 10,292.20 and 1,931.60 is: 2,897.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,861.46 : 10,292.20 = 1,931.60 : x
  2. Step 2: Convert to fraction form
    6,861.46/10,292.20 = 1,931.60/x
  3. Step 3: Cross multiply
    6,861.46x = 10,292.20 × 1,931.60
  4. Step 4: Simplify right side
    6,861.46x = 19,880,413.52
  5. Step 5: Solve for x
    x = 19,880,413.52/6,861.46
  6. Step 6: Final answer
    x = 2,897.40

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.