Home / 3,371.40-5,055.75-1,985.04

Finding the Fourth Proportional to 3,371.40, 5,055.75 and 1,985.04

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Solution

The fourth proportional to 3,371.40, 5,055.75 and 1,985.04 is: 2,976.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,371.40 : 5,055.75 = 1,985.04 : x
  2. Step 2: Convert to fraction form
    3,371.40/5,055.75 = 1,985.04/x
  3. Step 3: Cross multiply
    3,371.40x = 5,055.75 × 1,985.04
  4. Step 4: Simplify right side
    3,371.40x = 10,035,865.98
  5. Step 5: Solve for x
    x = 10,035,865.98/3,371.40
  6. Step 6: Final answer
    x = 2,976.77

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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.