Home / 2,772.40-3,826.55-1,828.36

Finding the Fourth Proportional to 2,772.40, 3,826.55 and 1,828.36

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Solution

The fourth proportional to 2,772.40, 3,826.55 and 1,828.36 is: 2,523.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,772.40 : 3,826.55 = 1,828.36 : x
  2. Step 2: Convert to fraction form
    2,772.40/3,826.55 = 1,828.36/x
  3. Step 3: Cross multiply
    2,772.40x = 3,826.55 × 1,828.36
  4. Step 4: Simplify right side
    2,772.40x = 6,996,305.96
  5. Step 5: Solve for x
    x = 6,996,305.96/2,772.40
  6. Step 6: Final answer
    x = 2,523.56

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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.