Home / 1,640.14-2,263.40-894.11

Finding the Fourth Proportional to 1,640.14, 2,263.40 and 894.11

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Solution

The fourth proportional to 1,640.14, 2,263.40 and 894.11 is: 1,233.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,640.14 : 2,263.40 = 894.11 : x
  2. Step 2: Convert to fraction form
    1,640.14/2,263.40 = 894.11/x
  3. Step 3: Cross multiply
    1,640.14x = 2,263.40 × 894.11
  4. Step 4: Simplify right side
    1,640.14x = 2,023,736.47
  5. Step 5: Solve for x
    x = 2,023,736.47/1,640.14
  6. Step 6: Final answer
    x = 1,233.88

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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.