Home / 3,082.80-4,254.56-2,090.16

Finding the Fourth Proportional to 3,082.80, 4,254.56 and 2,090.16

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Solution

The fourth proportional to 3,082.80, 4,254.56 and 2,090.16 is: 2,884.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,082.80 : 4,254.56 = 2,090.16 : x
  2. Step 2: Convert to fraction form
    3,082.80/4,254.56 = 2,090.16/x
  3. Step 3: Cross multiply
    3,082.80x = 4,254.56 × 2,090.16
  4. Step 4: Simplify right side
    3,082.80x = 8,892,711.13
  5. Step 5: Solve for x
    x = 8,892,711.13/3,082.80
  6. Step 6: Final answer
    x = 2,884.62

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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.