Home / 3,218.48-4,827.64-1,369.12

Finding the Fourth Proportional to 3,218.48, 4,827.64 and 1,369.12

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Solution

The fourth proportional to 3,218.48, 4,827.64 and 1,369.12 is: 2,053.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,218.48 : 4,827.64 = 1,369.12 : x
  2. Step 2: Convert to fraction form
    3,218.48/4,827.64 = 1,369.12/x
  3. Step 3: Cross multiply
    3,218.48x = 4,827.64 × 1,369.12
  4. Step 4: Simplify right side
    3,218.48x = 6,609,618.48
  5. Step 5: Solve for x
    x = 6,609,618.48/3,218.48
  6. Step 6: Final answer
    x = 2,053.65

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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.