Home / 3,134.40-4,315.62-2,661.32

Finding the Fourth Proportional to 3,134.40, 4,315.62 and 2,661.32

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Solution

The fourth proportional to 3,134.40, 4,315.62 and 2,661.32 is: 3,664.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,134.40 : 4,315.62 = 2,661.32 : x
  2. Step 2: Convert to fraction form
    3,134.40/4,315.62 = 2,661.32/x
  3. Step 3: Cross multiply
    3,134.40x = 4,315.62 × 2,661.32
  4. Step 4: Simplify right side
    3,134.40x = 11,485,245.82
  5. Step 5: Solve for x
    x = 11,485,245.82/3,134.40
  6. Step 6: Final answer
    x = 3,664.26

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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.