Home / 3,082.56-4,253.94-1,685.40

Finding the Fourth Proportional to 3,082.56, 4,253.94 and 1,685.40

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Solution

The fourth proportional to 3,082.56, 4,253.94 and 1,685.40 is: 2,325.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,082.56 : 4,253.94 = 1,685.40 : x
  2. Step 2: Convert to fraction form
    3,082.56/4,253.94 = 1,685.40/x
  3. Step 3: Cross multiply
    3,082.56x = 4,253.94 × 1,685.40
  4. Step 4: Simplify right side
    3,082.56x = 7,169,590.48
  5. Step 5: Solve for x
    x = 7,169,590.48/3,082.56
  6. Step 6: Final answer
    x = 2,325.86

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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.