Home / 3,218.40-4,827.60-1,269.18

Finding the Fourth Proportional to 3,218.40, 4,827.60 and 1,269.18

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Solution

The fourth proportional to 3,218.40, 4,827.60 and 1,269.18 is: 1,903.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,218.40 : 4,827.60 = 1,269.18 : x
  2. Step 2: Convert to fraction form
    3,218.40/4,827.60 = 1,269.18/x
  3. Step 3: Cross multiply
    3,218.40x = 4,827.60 × 1,269.18
  4. Step 4: Simplify right side
    3,218.40x = 6,127,093.37
  5. Step 5: Solve for x
    x = 6,127,093.37/3,218.40
  6. Step 6: Final answer
    x = 1,903.77

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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.