Home / 3,071.15-4,238.27-1,876.33

Finding the Fourth Proportional to 3,071.15, 4,238.27 and 1,876.33

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Solution

The fourth proportional to 3,071.15, 4,238.27 and 1,876.33 is: 2,589.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,071.15 : 4,238.27 = 1,876.33 : x
  2. Step 2: Convert to fraction form
    3,071.15/4,238.27 = 1,876.33/x
  3. Step 3: Cross multiply
    3,071.15x = 4,238.27 × 1,876.33
  4. Step 4: Simplify right side
    3,071.15x = 7,952,406.66
  5. Step 5: Solve for x
    x = 7,952,406.66/3,071.15
  6. Step 6: Final answer
    x = 2,589.39

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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.