Home / 2,772.60-4,150.80-1,849.20

Finding the Fourth Proportional to 2,772.60, 4,150.80 and 1,849.20

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Solution

The fourth proportional to 2,772.60, 4,150.80 and 1,849.20 is: 2,768.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,772.60 : 4,150.80 = 1,849.20 : x
  2. Step 2: Convert to fraction form
    2,772.60/4,150.80 = 1,849.20/x
  3. Step 3: Cross multiply
    2,772.60x = 4,150.80 × 1,849.20
  4. Step 4: Simplify right side
    2,772.60x = 7,675,659.36
  5. Step 5: Solve for x
    x = 7,675,659.36/2,772.60
  6. Step 6: Final answer
    x = 2,768.40

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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.