Home / 2,336.60-3,224.48-1,288.64

Finding the Fourth Proportional to 2,336.60, 3,224.48 and 1,288.64

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Solution

The fourth proportional to 2,336.60, 3,224.48 and 1,288.64 is: 1,778.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,336.60 : 3,224.48 = 1,288.64 : x
  2. Step 2: Convert to fraction form
    2,336.60/3,224.48 = 1,288.64/x
  3. Step 3: Cross multiply
    2,336.60x = 3,224.48 × 1,288.64
  4. Step 4: Simplify right side
    2,336.60x = 4,155,193.91
  5. Step 5: Solve for x
    x = 4,155,193.91/2,336.60
  6. Step 6: Final answer
    x = 1,778.31

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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.