Home / 2,322.56-3,205.20-1,391.36

Finding the Fourth Proportional to 2,322.56, 3,205.20 and 1,391.36

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Solution

The fourth proportional to 2,322.56, 3,205.20 and 1,391.36 is: 1,920.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,322.56 : 3,205.20 = 1,391.36 : x
  2. Step 2: Convert to fraction form
    2,322.56/3,205.20 = 1,391.36/x
  3. Step 3: Cross multiply
    2,322.56x = 3,205.20 × 1,391.36
  4. Step 4: Simplify right side
    2,322.56x = 4,459,587.07
  5. Step 5: Solve for x
    x = 4,459,587.07/2,322.56
  6. Step 6: Final answer
    x = 1,920.12

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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.