Home / 2,199.04-3,290.35-1,275.03

Finding the Fourth Proportional to 2,199.04, 3,290.35 and 1,275.03

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Solution

The fourth proportional to 2,199.04, 3,290.35 and 1,275.03 is: 1,907.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,199.04 : 3,290.35 = 1,275.03 : x
  2. Step 2: Convert to fraction form
    2,199.04/3,290.35 = 1,275.03/x
  3. Step 3: Cross multiply
    2,199.04x = 3,290.35 × 1,275.03
  4. Step 4: Simplify right side
    2,199.04x = 4,195,294.96
  5. Step 5: Solve for x
    x = 4,195,294.96/2,199.04
  6. Step 6: Final answer
    x = 1,907.78

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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.