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Finding the Fourth Proportional to 2,649.81, 3,656.84 and 1,601.67

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Solution

The fourth proportional to 2,649.81, 3,656.84 and 1,601.67 is: 2,210.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,649.81 : 3,656.84 = 1,601.67 : x
  2. Step 2: Convert to fraction form
    2,649.81/3,656.84 = 1,601.67/x
  3. Step 3: Cross multiply
    2,649.81x = 3,656.84 × 1,601.67
  4. Step 4: Simplify right side
    2,649.81x = 5,857,042.91
  5. Step 5: Solve for x
    x = 5,857,042.91/2,649.81
  6. Step 6: Final answer
    x = 2,210.36

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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.