Home / 2,178.02-3,005.67-1,183.30

Finding the Fourth Proportional to 2,178.02, 3,005.67 and 1,183.30

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Solution

The fourth proportional to 2,178.02, 3,005.67 and 1,183.30 is: 1,632.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,178.02 : 3,005.67 = 1,183.30 : x
  2. Step 2: Convert to fraction form
    2,178.02/3,005.67 = 1,183.30/x
  3. Step 3: Cross multiply
    2,178.02x = 3,005.67 × 1,183.30
  4. Step 4: Simplify right side
    2,178.02x = 3,556,604.70
  5. Step 5: Solve for x
    x = 3,556,604.70/2,178.02
  6. Step 6: Final answer
    x = 1,632.95

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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.