Home / 3,082.21-4,253.45-1,665.89

Finding the Fourth Proportional to 3,082.21, 4,253.45 and 1,665.89

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Solution

The fourth proportional to 3,082.21, 4,253.45 and 1,665.89 is: 2,298.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,082.21 : 4,253.45 = 1,665.89 : x
  2. Step 2: Convert to fraction form
    3,082.21/4,253.45 = 1,665.89/x
  3. Step 3: Cross multiply
    3,082.21x = 4,253.45 × 1,665.89
  4. Step 4: Simplify right side
    3,082.21x = 7,085,780.97
  5. Step 5: Solve for x
    x = 7,085,780.97/3,082.21
  6. Step 6: Final answer
    x = 2,298.93

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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.