Home / 7,139.46-10,703.03-2,759.99

Finding the Fourth Proportional to 7,139.46, 10,703.03 and 2,759.99

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Solution

The fourth proportional to 7,139.46, 10,703.03 and 2,759.99 is: 4,137.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,139.46 : 10,703.03 = 2,759.99 : x
  2. Step 2: Convert to fraction form
    7,139.46/10,703.03 = 2,759.99/x
  3. Step 3: Cross multiply
    7,139.46x = 10,703.03 × 2,759.99
  4. Step 4: Simplify right side
    7,139.46x = 29,540,255.77
  5. Step 5: Solve for x
    x = 29,540,255.77/7,139.46
  6. Step 6: Final answer
    x = 4,137.60

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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.