Home / 3,316.67-4,576.00-1,989.89

Finding the Fourth Proportional to 3,316.67, 4,576.00 and 1,989.89

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Solution

The fourth proportional to 3,316.67, 4,576.00 and 1,989.89 is: 2,745.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,316.67 : 4,576.00 = 1,989.89 : x
  2. Step 2: Convert to fraction form
    3,316.67/4,576.00 = 1,989.89/x
  3. Step 3: Cross multiply
    3,316.67x = 4,576.00 × 1,989.89
  4. Step 4: Simplify right side
    3,316.67x = 9,105,703.81
  5. Step 5: Solve for x
    x = 9,105,703.81/3,316.67
  6. Step 6: Final answer
    x = 2,745.44

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.