Home / 2,330.40-3,214.80-1,984.80

Finding the Fourth Proportional to 2,330.40, 3,214.80 and 1,984.80

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Solution

The fourth proportional to 2,330.40, 3,214.80 and 1,984.80 is: 2,738.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,330.40 : 3,214.80 = 1,984.80 : x
  2. Step 2: Convert to fraction form
    2,330.40/3,214.80 = 1,984.80/x
  3. Step 3: Cross multiply
    2,330.40x = 3,214.80 × 1,984.80
  4. Step 4: Simplify right side
    2,330.40x = 6,380,735.04
  5. Step 5: Solve for x
    x = 6,380,735.04/2,330.40
  6. Step 6: Final answer
    x = 2,738.04

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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.