Home / 3,328.40-4,992.58-1,019.90

Finding the Fourth Proportional to 3,328.40, 4,992.58 and 1,019.90

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Solution

The fourth proportional to 3,328.40, 4,992.58 and 1,019.90 is: 1,529.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,328.40 : 4,992.58 = 1,019.90 : x
  2. Step 2: Convert to fraction form
    3,328.40/4,992.58 = 1,019.90/x
  3. Step 3: Cross multiply
    3,328.40x = 4,992.58 × 1,019.90
  4. Step 4: Simplify right side
    3,328.40x = 5,091,932.34
  5. Step 5: Solve for x
    x = 5,091,932.34/3,328.40
  6. Step 6: Final answer
    x = 1,529.84

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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.