Home / 2,856.55-4,282.80-1,297.30

Finding the Fourth Proportional to 2,856.55, 4,282.80 and 1,297.30

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Solution

The fourth proportional to 2,856.55, 4,282.80 and 1,297.30 is: 1,945.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,856.55 : 4,282.80 = 1,297.30 : x
  2. Step 2: Convert to fraction form
    2,856.55/4,282.80 = 1,297.30/x
  3. Step 3: Cross multiply
    2,856.55x = 4,282.80 × 1,297.30
  4. Step 4: Simplify right side
    2,856.55x = 5,556,076.44
  5. Step 5: Solve for x
    x = 5,556,076.44/2,856.55
  6. Step 6: Final answer
    x = 1,945.03

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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.