Home / 3,399.04-4,690.40-1,906.72

Finding the Fourth Proportional to 3,399.04, 4,690.40 and 1,906.72

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Solution

The fourth proportional to 3,399.04, 4,690.40 and 1,906.72 is: 2,631.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,399.04 : 4,690.40 = 1,906.72 : x
  2. Step 2: Convert to fraction form
    3,399.04/4,690.40 = 1,906.72/x
  3. Step 3: Cross multiply
    3,399.04x = 4,690.40 × 1,906.72
  4. Step 4: Simplify right side
    3,399.04x = 8,943,279.49
  5. Step 5: Solve for x
    x = 8,943,279.49/3,399.04
  6. Step 6: Final answer
    x = 2,631.12

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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.