Home / 3,082.25-4,253.61-1,685.09

Finding the Fourth Proportional to 3,082.25, 4,253.61 and 1,685.09

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Solution

The fourth proportional to 3,082.25, 4,253.61 and 1,685.09 is: 2,325.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,082.25 : 4,253.61 = 1,685.09 : x
  2. Step 2: Convert to fraction form
    3,082.25/4,253.61 = 1,685.09/x
  3. Step 3: Cross multiply
    3,082.25x = 4,253.61 × 1,685.09
  4. Step 4: Simplify right side
    3,082.25x = 7,167,715.67
  5. Step 5: Solve for x
    x = 7,167,715.67/3,082.25
  6. Step 6: Final answer
    x = 2,325.48

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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.