Home / 4,278.70-6,418.68-2,305.36

Finding the Fourth Proportional to 4,278.70, 6,418.68 and 2,305.36

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Solution

The fourth proportional to 4,278.70, 6,418.68 and 2,305.36 is: 3,458.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,278.70 : 6,418.68 = 2,305.36 : x
  2. Step 2: Convert to fraction form
    4,278.70/6,418.68 = 2,305.36/x
  3. Step 3: Cross multiply
    4,278.70x = 6,418.68 × 2,305.36
  4. Step 4: Simplify right side
    4,278.70x = 14,797,368.12
  5. Step 5: Solve for x
    x = 14,797,368.12/4,278.70
  6. Step 6: Final answer
    x = 3,458.38

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.