Home / 2,778.50-3,833.69-1,659.23

Finding the Fourth Proportional to 2,778.50, 3,833.69 and 1,659.23

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Solution

The fourth proportional to 2,778.50, 3,833.69 and 1,659.23 is: 2,289.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,778.50 : 3,833.69 = 1,659.23 : x
  2. Step 2: Convert to fraction form
    2,778.50/3,833.69 = 1,659.23/x
  3. Step 3: Cross multiply
    2,778.50x = 3,833.69 × 1,659.23
  4. Step 4: Simplify right side
    2,778.50x = 6,360,945.99
  5. Step 5: Solve for x
    x = 6,360,945.99/2,778.50
  6. Step 6: Final answer
    x = 2,289.35

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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.