Home / 3,317.89-4,977.38-1,125.89

Finding the Fourth Proportional to 3,317.89, 4,977.38 and 1,125.89

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Solution

The fourth proportional to 3,317.89, 4,977.38 and 1,125.89 is: 1,689.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,317.89 : 4,977.38 = 1,125.89 : x
  2. Step 2: Convert to fraction form
    3,317.89/4,977.38 = 1,125.89/x
  3. Step 3: Cross multiply
    3,317.89x = 4,977.38 × 1,125.89
  4. Step 4: Simplify right side
    3,317.89x = 5,603,982.37
  5. Step 5: Solve for x
    x = 5,603,982.37/3,317.89
  6. Step 6: Final answer
    x = 1,689.02

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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.