Home / 2,830.80-4,246.32-1,269.12

Finding the Fourth Proportional to 2,830.80, 4,246.32 and 1,269.12

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Solution

The fourth proportional to 2,830.80, 4,246.32 and 1,269.12 is: 1,903.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,830.80 : 4,246.32 = 1,269.12 : x
  2. Step 2: Convert to fraction form
    2,830.80/4,246.32 = 1,269.12/x
  3. Step 3: Cross multiply
    2,830.80x = 4,246.32 × 1,269.12
  4. Step 4: Simplify right side
    2,830.80x = 5,389,089.64
  5. Step 5: Solve for x
    x = 5,389,089.64/2,830.80
  6. Step 6: Final answer
    x = 1,903.73

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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.