Home / 3,133.88-4,323.56-2,072.15

Finding the Fourth Proportional to 3,133.88, 4,323.56 and 2,072.15

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Solution

The fourth proportional to 3,133.88, 4,323.56 and 2,072.15 is: 2,858.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,133.88 : 4,323.56 = 2,072.15 : x
  2. Step 2: Convert to fraction form
    3,133.88/4,323.56 = 2,072.15/x
  3. Step 3: Cross multiply
    3,133.88x = 4,323.56 × 2,072.15
  4. Step 4: Simplify right side
    3,133.88x = 8,959,032.88
  5. Step 5: Solve for x
    x = 8,959,032.88/3,133.88
  6. Step 6: Final answer
    x = 2,858.77

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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.