Home / 2,518.22-3,778.47-1,284.99

Finding the Fourth Proportional to 2,518.22, 3,778.47 and 1,284.99

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Solution

The fourth proportional to 2,518.22, 3,778.47 and 1,284.99 is: 1,928.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,518.22 : 3,778.47 = 1,284.99 : x
  2. Step 2: Convert to fraction form
    2,518.22/3,778.47 = 1,284.99/x
  3. Step 3: Cross multiply
    2,518.22x = 3,778.47 × 1,284.99
  4. Step 4: Simplify right side
    2,518.22x = 4,855,296.17
  5. Step 5: Solve for x
    x = 4,855,296.17/2,518.22
  6. Step 6: Final answer
    x = 1,928.07

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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.