Home / 2,778.20-3,835.52-2,073.93

Finding the Fourth Proportional to 2,778.20, 3,835.52 and 2,073.93

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Solution

The fourth proportional to 2,778.20, 3,835.52 and 2,073.93 is: 2,863.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,778.20 : 3,835.52 = 2,073.93 : x
  2. Step 2: Convert to fraction form
    2,778.20/3,835.52 = 2,073.93/x
  3. Step 3: Cross multiply
    2,778.20x = 3,835.52 × 2,073.93
  4. Step 4: Simplify right side
    2,778.20x = 7,954,570.45
  5. Step 5: Solve for x
    x = 7,954,570.45/2,778.20
  6. Step 6: Final answer
    x = 2,863.21

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.