Home / 2,840.33-3,911.55-2,438.84

Finding the Fourth Proportional to 2,840.33, 3,911.55 and 2,438.84

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Solution

The fourth proportional to 2,840.33, 3,911.55 and 2,438.84 is: 3,358.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,840.33 : 3,911.55 = 2,438.84 : x
  2. Step 2: Convert to fraction form
    2,840.33/3,911.55 = 2,438.84/x
  3. Step 3: Cross multiply
    2,840.33x = 3,911.55 × 2,438.84
  4. Step 4: Simplify right side
    2,840.33x = 9,539,644.60
  5. Step 5: Solve for x
    x = 9,539,644.60/2,840.33
  6. Step 6: Final answer
    x = 3,358.64

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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.