Home / 2,336.76-3,224.32-1,405.28

Finding the Fourth Proportional to 2,336.76, 3,224.32 and 1,405.28

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Solution

The fourth proportional to 2,336.76, 3,224.32 and 1,405.28 is: 1,939.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,336.76 : 3,224.32 = 1,405.28 : x
  2. Step 2: Convert to fraction form
    2,336.76/3,224.32 = 1,405.28/x
  3. Step 3: Cross multiply
    2,336.76x = 3,224.32 × 1,405.28
  4. Step 4: Simplify right side
    2,336.76x = 4,531,072.41
  5. Step 5: Solve for x
    x = 4,531,072.41/2,336.76
  6. Step 6: Final answer
    x = 1,939.04

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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.