Home / 2,285.28-3,427.92-1,878.26

Finding the Fourth Proportional to 2,285.28, 3,427.92 and 1,878.26

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Solution

The fourth proportional to 2,285.28, 3,427.92 and 1,878.26 is: 2,817.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,285.28 : 3,427.92 = 1,878.26 : x
  2. Step 2: Convert to fraction form
    2,285.28/3,427.92 = 1,878.26/x
  3. Step 3: Cross multiply
    2,285.28x = 3,427.92 × 1,878.26
  4. Step 4: Simplify right side
    2,285.28x = 6,438,507.88
  5. Step 5: Solve for x
    x = 6,438,507.88/2,285.28
  6. Step 6: Final answer
    x = 2,817.38

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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.