Home / 2,799.36-4,199.04-2,638.98

Finding the Fourth Proportional to 2,799.36, 4,199.04 and 2,638.98

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Solution

The fourth proportional to 2,799.36, 4,199.04 and 2,638.98 is: 3,958.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,799.36 : 4,199.04 = 2,638.98 : x
  2. Step 2: Convert to fraction form
    2,799.36/4,199.04 = 2,638.98/x
  3. Step 3: Cross multiply
    2,799.36x = 4,199.04 × 2,638.98
  4. Step 4: Simplify right side
    2,799.36x = 11,081,182.58
  5. Step 5: Solve for x
    x = 11,081,182.58/2,799.36
  6. Step 6: Final answer
    x = 3,958.47

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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.