Home / 1,611.40-2,203.73-1,568.20

Finding the Fourth Proportional to 1,611.40, 2,203.73 and 1,568.20

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Solution

The fourth proportional to 1,611.40, 2,203.73 and 1,568.20 is: 2,144.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,611.40 : 2,203.73 = 1,568.20 : x
  2. Step 2: Convert to fraction form
    1,611.40/2,203.73 = 1,568.20/x
  3. Step 3: Cross multiply
    1,611.40x = 2,203.73 × 1,568.20
  4. Step 4: Simplify right side
    1,611.40x = 3,455,889.39
  5. Step 5: Solve for x
    x = 3,455,889.39/1,611.40
  6. Step 6: Final answer
    x = 2,144.65

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.