Home / 3,861.76-5,806.08-3,097.60

Finding the Fourth Proportional to 3,861.76, 5,806.08 and 3,097.60

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Solution

The fourth proportional to 3,861.76, 5,806.08 and 3,097.60 is: 4,657.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,861.76 : 5,806.08 = 3,097.60 : x
  2. Step 2: Convert to fraction form
    3,861.76/5,806.08 = 3,097.60/x
  3. Step 3: Cross multiply
    3,861.76x = 5,806.08 × 3,097.60
  4. Step 4: Simplify right side
    3,861.76x = 17,984,913.41
  5. Step 5: Solve for x
    x = 17,984,913.41/3,861.76
  6. Step 6: Final answer
    x = 4,657.18

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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.