Home / 3,809.34-5,714.64-1,861.74

Finding the Fourth Proportional to 3,809.34, 5,714.64 and 1,861.74

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Solution

The fourth proportional to 3,809.34, 5,714.64 and 1,861.74 is: 2,792.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,809.34 : 5,714.64 = 1,861.74 : x
  2. Step 2: Convert to fraction form
    3,809.34/5,714.64 = 1,861.74/x
  3. Step 3: Cross multiply
    3,809.34x = 5,714.64 × 1,861.74
  4. Step 4: Simplify right side
    3,809.34x = 10,639,173.87
  5. Step 5: Solve for x
    x = 10,639,173.87/3,809.34
  6. Step 6: Final answer
    x = 2,792.92

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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.