Home / 2,659.28-3,668.91-1,611.68

Finding the Fourth Proportional to 2,659.28, 3,668.91 and 1,611.68

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Solution

The fourth proportional to 2,659.28, 3,668.91 and 1,611.68 is: 2,223.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,659.28 : 3,668.91 = 1,611.68 : x
  2. Step 2: Convert to fraction form
    2,659.28/3,668.91 = 1,611.68/x
  3. Step 3: Cross multiply
    2,659.28x = 3,668.91 × 1,611.68
  4. Step 4: Simplify right side
    2,659.28x = 5,913,108.87
  5. Step 5: Solve for x
    x = 5,913,108.87/2,659.28
  6. Step 6: Final answer
    x = 2,223.58

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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.