Home / 3,579.64-4,942.20-2,918.08

Finding the Fourth Proportional to 3,579.64, 4,942.20 and 2,918.08

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Solution

The fourth proportional to 3,579.64, 4,942.20 and 2,918.08 is: 4,028.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,579.64 : 4,942.20 = 2,918.08 : x
  2. Step 2: Convert to fraction form
    3,579.64/4,942.20 = 2,918.08/x
  3. Step 3: Cross multiply
    3,579.64x = 4,942.20 × 2,918.08
  4. Step 4: Simplify right side
    3,579.64x = 14,421,734.98
  5. Step 5: Solve for x
    x = 14,421,734.98/3,579.64
  6. Step 6: Final answer
    x = 4,028.82

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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.