Home / 4,511.70-6,768.29-1,391.60

Finding the Fourth Proportional to 4,511.70, 6,768.29 and 1,391.60

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Solution

The fourth proportional to 4,511.70, 6,768.29 and 1,391.60 is: 2,087.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,511.70 : 6,768.29 = 1,391.60 : x
  2. Step 2: Convert to fraction form
    4,511.70/6,768.29 = 1,391.60/x
  3. Step 3: Cross multiply
    4,511.70x = 6,768.29 × 1,391.60
  4. Step 4: Simplify right side
    4,511.70x = 9,418,772.76
  5. Step 5: Solve for x
    x = 9,418,772.76/4,511.70
  6. Step 6: Final answer
    x = 2,087.63

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1.5x scale

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.