Home / 2,170.64-3,238.48-1,896.32

Finding the Fourth Proportional to 2,170.64, 3,238.48 and 1,896.32

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Solution

The fourth proportional to 2,170.64, 3,238.48 and 1,896.32 is: 2,829.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,170.64 : 3,238.48 = 1,896.32 : x
  2. Step 2: Convert to fraction form
    2,170.64/3,238.48 = 1,896.32/x
  3. Step 3: Cross multiply
    2,170.64x = 3,238.48 × 1,896.32
  4. Step 4: Simplify right side
    2,170.64x = 6,141,194.39
  5. Step 5: Solve for x
    x = 6,141,194.39/2,170.64
  6. Step 6: Final answer
    x = 2,829.21

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.