Home / 5,756.69-8,636.66-1,861.40

Finding the Fourth Proportional to 5,756.69, 8,636.66 and 1,861.40

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Solution

The fourth proportional to 5,756.69, 8,636.66 and 1,861.40 is: 2,792.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,756.69 : 8,636.66 = 1,861.40 : x
  2. Step 2: Convert to fraction form
    5,756.69/8,636.66 = 1,861.40/x
  3. Step 3: Cross multiply
    5,756.69x = 8,636.66 × 1,861.40
  4. Step 4: Simplify right side
    5,756.69x = 16,076,269.62
  5. Step 5: Solve for x
    x = 16,076,269.62/5,756.69
  6. Step 6: Final answer
    x = 2,792.62

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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.