Home / 3,890.34-5,836.49-1,117.25

Finding the Fourth Proportional to 3,890.34, 5,836.49 and 1,117.25

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Solution

The fourth proportional to 3,890.34, 5,836.49 and 1,117.25 is: 1,676.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,890.34 : 5,836.49 = 1,117.25 : x
  2. Step 2: Convert to fraction form
    3,890.34/5,836.49 = 1,117.25/x
  3. Step 3: Cross multiply
    3,890.34x = 5,836.49 × 1,117.25
  4. Step 4: Simplify right side
    3,890.34x = 6,520,783.68
  5. Step 5: Solve for x
    x = 6,520,783.68/3,890.34
  6. Step 6: Final answer
    x = 1,676.15

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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.