Home / 3,980.44-5,970.97-1,207.35

Finding the Fourth Proportional to 3,980.44, 5,970.97 and 1,207.35

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Solution

The fourth proportional to 3,980.44, 5,970.97 and 1,207.35 is: 1,811.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,980.44 : 5,970.97 = 1,207.35 : x
  2. Step 2: Convert to fraction form
    3,980.44/5,970.97 = 1,207.35/x
  3. Step 3: Cross multiply
    3,980.44x = 5,970.97 × 1,207.35
  4. Step 4: Simplify right side
    3,980.44x = 7,209,050.63
  5. Step 5: Solve for x
    x = 7,209,050.63/3,980.44
  6. Step 6: Final answer
    x = 1,811.12

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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.