Home / 3,082.86-4,624.29-1,328.40

Finding the Fourth Proportional to 3,082.86, 4,624.29 and 1,328.40

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Solution

The fourth proportional to 3,082.86, 4,624.29 and 1,328.40 is: 1,992.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,082.86 : 4,624.29 = 1,328.40 : x
  2. Step 2: Convert to fraction form
    3,082.86/4,624.29 = 1,328.40/x
  3. Step 3: Cross multiply
    3,082.86x = 4,624.29 × 1,328.40
  4. Step 4: Simplify right side
    3,082.86x = 6,142,906.84
  5. Step 5: Solve for x
    x = 6,142,906.84/3,082.86
  6. Step 6: Final answer
    x = 1,992.60

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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.