Home / 3,317.49-4,576.60-1,988.89

Finding the Fourth Proportional to 3,317.49, 4,576.60 and 1,988.89

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Solution

The fourth proportional to 3,317.49, 4,576.60 and 1,988.89 is: 2,743.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,317.49 : 4,576.60 = 1,988.89 : x
  2. Step 2: Convert to fraction form
    3,317.49/4,576.60 = 1,988.89/x
  3. Step 3: Cross multiply
    3,317.49x = 4,576.60 × 1,988.89
  4. Step 4: Simplify right side
    3,317.49x = 9,102,353.97
  5. Step 5: Solve for x
    x = 9,102,353.97/3,317.49
  6. Step 6: Final answer
    x = 2,743.75

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1.5x scale

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.