Home / 3,348.60-5,020.86-1,399.08

Finding the Fourth Proportional to 3,348.60, 5,020.86 and 1,399.08

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Solution

The fourth proportional to 3,348.60, 5,020.86 and 1,399.08 is: 2,097.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,348.60 : 5,020.86 = 1,399.08 : x
  2. Step 2: Convert to fraction form
    3,348.60/5,020.86 = 1,399.08/x
  3. Step 3: Cross multiply
    3,348.60x = 5,020.86 × 1,399.08
  4. Step 4: Simplify right side
    3,348.60x = 7,024,584.81
  5. Step 5: Solve for x
    x = 7,024,584.81/3,348.60
  6. Step 6: Final answer
    x = 2,097.77

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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.