Home / 1,183.28-1,763.38-1,147.65

Finding the Fourth Proportional to 1,183.28, 1,763.38 and 1,147.65

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Solution

The fourth proportional to 1,183.28, 1,763.38 and 1,147.65 is: 1,710.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,183.28 : 1,763.38 = 1,147.65 : x
  2. Step 2: Convert to fraction form
    1,183.28/1,763.38 = 1,147.65/x
  3. Step 3: Cross multiply
    1,183.28x = 1,763.38 × 1,147.65
  4. Step 4: Simplify right side
    1,183.28x = 2,023,746.64
  5. Step 5: Solve for x
    x = 2,023,746.64/1,183.28
  6. Step 6: Final answer
    x = 1,710.29

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.