Home / 2,774.80-4,163.40-2,157.58

Finding the Fourth Proportional to 2,774.80, 4,163.40 and 2,157.58

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Solution

The fourth proportional to 2,774.80, 4,163.40 and 2,157.58 is: 3,237.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,774.80 : 4,163.40 = 2,157.58 : x
  2. Step 2: Convert to fraction form
    2,774.80/4,163.40 = 2,157.58/x
  3. Step 3: Cross multiply
    2,774.80x = 4,163.40 × 2,157.58
  4. Step 4: Simplify right side
    2,774.80x = 8,982,868.57
  5. Step 5: Solve for x
    x = 8,982,868.57/2,774.80
  6. Step 6: Final answer
    x = 3,237.30

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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.