Home / 2,293.60-3,440.40-1,321.60

Finding the Fourth Proportional to 2,293.60, 3,440.40 and 1,321.60

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Solution

The fourth proportional to 2,293.60, 3,440.40 and 1,321.60 is: 1,982.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,293.60 : 3,440.40 = 1,321.60 : x
  2. Step 2: Convert to fraction form
    2,293.60/3,440.40 = 1,321.60/x
  3. Step 3: Cross multiply
    2,293.60x = 3,440.40 × 1,321.60
  4. Step 4: Simplify right side
    2,293.60x = 4,546,832.64
  5. Step 5: Solve for x
    x = 4,546,832.64/2,293.60
  6. Step 6: Final answer
    x = 1,982.40

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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.