Home / 3,082.80-4,623.30-1,108.20

Finding the Fourth Proportional to 3,082.80, 4,623.30 and 1,108.20

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Solution

The fourth proportional to 3,082.80, 4,623.30 and 1,108.20 is: 1,661.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,082.80 : 4,623.30 = 1,108.20 : x
  2. Step 2: Convert to fraction form
    3,082.80/4,623.30 = 1,108.20/x
  3. Step 3: Cross multiply
    3,082.80x = 4,623.30 × 1,108.20
  4. Step 4: Simplify right side
    3,082.80x = 5,123,541.06
  5. Step 5: Solve for x
    x = 5,123,541.06/3,082.80
  6. Step 6: Final answer
    x = 1,661.98

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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.