Home / 1,728.81-2,593.68-1,256.23

Finding the Fourth Proportional to 1,728.81, 2,593.68 and 1,256.23

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Solution

The fourth proportional to 1,728.81, 2,593.68 and 1,256.23 is: 1,884.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,728.81 : 2,593.68 = 1,256.23 : x
  2. Step 2: Convert to fraction form
    1,728.81/2,593.68 = 1,256.23/x
  3. Step 3: Cross multiply
    1,728.81x = 2,593.68 × 1,256.23
  4. Step 4: Simplify right side
    1,728.81x = 3,258,257.16
  5. Step 5: Solve for x
    x = 3,258,257.16/1,728.81
  6. Step 6: Final answer
    x = 1,884.68

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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.