Home / 3,179.95-4,388.09-1,853.48

Finding the Fourth Proportional to 3,179.95, 4,388.09 and 1,853.48

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Solution

The fourth proportional to 3,179.95, 4,388.09 and 1,853.48 is: 2,557.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,179.95 : 4,388.09 = 1,853.48 : x
  2. Step 2: Convert to fraction form
    3,179.95/4,388.09 = 1,853.48/x
  3. Step 3: Cross multiply
    3,179.95x = 4,388.09 × 1,853.48
  4. Step 4: Simplify right side
    3,179.95x = 8,133,238.76
  5. Step 5: Solve for x
    x = 8,133,238.76/3,179.95
  6. Step 6: Final answer
    x = 2,557.66

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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.