Home / 3,985.35-5,977.12-1,173.46

Finding the Fourth Proportional to 3,985.35, 5,977.12 and 1,173.46

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Solution

The fourth proportional to 3,985.35, 5,977.12 and 1,173.46 is: 1,759.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,985.35 : 5,977.12 = 1,173.46 : x
  2. Step 2: Convert to fraction form
    3,985.35/5,977.12 = 1,173.46/x
  3. Step 3: Cross multiply
    3,985.35x = 5,977.12 × 1,173.46
  4. Step 4: Simplify right side
    3,985.35x = 7,013,920.28
  5. Step 5: Solve for x
    x = 7,013,920.28/3,985.35
  6. Step 6: Final answer
    x = 1,759.92

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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.