Home / 4,120.67-5,688.63-2,549.68

Finding the Fourth Proportional to 4,120.67, 5,688.63 and 2,549.68

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Solution

The fourth proportional to 4,120.67, 5,688.63 and 2,549.68 is: 3,519.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,120.67 : 5,688.63 = 2,549.68 : x
  2. Step 2: Convert to fraction form
    4,120.67/5,688.63 = 2,549.68/x
  3. Step 3: Cross multiply
    4,120.67x = 5,688.63 × 2,549.68
  4. Step 4: Simplify right side
    4,120.67x = 14,504,171.92
  5. Step 5: Solve for x
    x = 14,504,171.92/4,120.67
  6. Step 6: Final answer
    x = 3,519.86

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.