Home / 4,511.16-6,765.48-1,391.40

Finding the Fourth Proportional to 4,511.16, 6,765.48 and 1,391.40

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Solution

The fourth proportional to 4,511.16, 6,765.48 and 1,391.40 is: 2,086.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,511.16 : 6,765.48 = 1,391.40 : x
  2. Step 2: Convert to fraction form
    4,511.16/6,765.48 = 1,391.40/x
  3. Step 3: Cross multiply
    4,511.16x = 6,765.48 × 1,391.40
  4. Step 4: Simplify right side
    4,511.16x = 9,413,488.87
  5. Step 5: Solve for x
    x = 9,413,488.87/4,511.16
  6. Step 6: Final answer
    x = 2,086.71

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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.