Home / 2,772.37-3,826.40-1,777.62

Finding the Fourth Proportional to 2,772.37, 3,826.40 and 1,777.62

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Solution

The fourth proportional to 2,772.37, 3,826.40 and 1,777.62 is: 2,453.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,772.37 : 3,826.40 = 1,777.62 : x
  2. Step 2: Convert to fraction form
    2,772.37/3,826.40 = 1,777.62/x
  3. Step 3: Cross multiply
    2,772.37x = 3,826.40 × 1,777.62
  4. Step 4: Simplify right side
    2,772.37x = 6,801,876.28
  5. Step 5: Solve for x
    x = 6,801,876.28/2,772.37
  6. Step 6: Final answer
    x = 2,453.45

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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.