Home / 4,518.75-6,778.13-1,440.75

Finding the Fourth Proportional to 4,518.75, 6,778.13 and 1,440.75

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Solution

The fourth proportional to 4,518.75, 6,778.13 and 1,440.75 is: 2,161.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,518.75 : 6,778.13 = 1,440.75 : x
  2. Step 2: Convert to fraction form
    4,518.75/6,778.13 = 1,440.75/x
  3. Step 3: Cross multiply
    4,518.75x = 6,778.13 × 1,440.75
  4. Step 4: Simplify right side
    4,518.75x = 9,765,583.59
  5. Step 5: Solve for x
    x = 9,765,583.59/4,518.75
  6. Step 6: Final answer
    x = 2,161.13

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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.