Home / 3,927.12-5,418.36-2,333.34

Finding the Fourth Proportional to 3,927.12, 5,418.36 and 2,333.34

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Solution

The fourth proportional to 3,927.12, 5,418.36 and 2,333.34 is: 3,219.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,927.12 : 5,418.36 = 2,333.34 : x
  2. Step 2: Convert to fraction form
    3,927.12/5,418.36 = 2,333.34/x
  3. Step 3: Cross multiply
    3,927.12x = 5,418.36 × 2,333.34
  4. Step 4: Simplify right side
    3,927.12x = 12,642,876.12
  5. Step 5: Solve for x
    x = 12,642,876.12/3,927.12
  6. Step 6: Final answer
    x = 3,219.38

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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.