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Finding the Fourth Proportional to 3,488, 4,813.98 and 2,090.48

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Solution

The fourth proportional to 3,488, 4,813.98 and 2,090.48 is: 2,885.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,488 : 4,813.98 = 2,090.48 : x
  2. Step 2: Convert to fraction form
    3,488/4,813.98 = 2,090.48/x
  3. Step 3: Cross multiply
    3,488x = 4,813.98 × 2,090.48
  4. Step 4: Simplify right side
    3,488x = 10,063,528.91
  5. Step 5: Solve for x
    x = 10,063,528.91/3,488
  6. Step 6: Final answer
    x = 2,885.19

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.