Home / 1,813.12-2,727.36-1,636.48

Finding the Fourth Proportional to 1,813.12, 2,727.36 and 1,636.48

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Solution

The fourth proportional to 1,813.12, 2,727.36 and 1,636.48 is: 2,461.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,813.12 : 2,727.36 = 1,636.48 : x
  2. Step 2: Convert to fraction form
    1,813.12/2,727.36 = 1,636.48/x
  3. Step 3: Cross multiply
    1,813.12x = 2,727.36 × 1,636.48
  4. Step 4: Simplify right side
    1,813.12x = 4,463,270.09
  5. Step 5: Solve for x
    x = 4,463,270.09/1,813.12
  6. Step 6: Final answer
    x = 2,461.65

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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.