Home / 1,738.29-2,396.99-1,147.80

Finding the Fourth Proportional to 1,738.29, 2,396.99 and 1,147.80

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Solution

The fourth proportional to 1,738.29, 2,396.99 and 1,147.80 is: 1,582.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,738.29 : 2,396.99 = 1,147.80 : x
  2. Step 2: Convert to fraction form
    1,738.29/2,396.99 = 1,147.80/x
  3. Step 3: Cross multiply
    1,738.29x = 2,396.99 × 1,147.80
  4. Step 4: Simplify right side
    1,738.29x = 2,751,259.38
  5. Step 5: Solve for x
    x = 2,751,259.38/1,738.29
  6. Step 6: Final answer
    x = 1,582.74

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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.