Home / 3,645.40-5,455.14-2,098.84

Finding the Fourth Proportional to 3,645.40, 5,455.14 and 2,098.84

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Solution

The fourth proportional to 3,645.40, 5,455.14 and 2,098.84 is: 3,140.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,645.40 : 5,455.14 = 2,098.84 : x
  2. Step 2: Convert to fraction form
    3,645.40/5,455.14 = 2,098.84/x
  3. Step 3: Cross multiply
    3,645.40x = 5,455.14 × 2,098.84
  4. Step 4: Simplify right side
    3,645.40x = 11,449,466.04
  5. Step 5: Solve for x
    x = 11,449,466.04/3,645.40
  6. Step 6: Final answer
    x = 3,140.80

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1.5x scale

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.