Home / 2,145.35-3,216.14-1,104.81

Finding the Fourth Proportional to 2,145.35, 3,216.14 and 1,104.81

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Solution

The fourth proportional to 2,145.35, 3,216.14 and 1,104.81 is: 1,656.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,145.35 : 3,216.14 = 1,104.81 : x
  2. Step 2: Convert to fraction form
    2,145.35/3,216.14 = 1,104.81/x
  3. Step 3: Cross multiply
    2,145.35x = 3,216.14 × 1,104.81
  4. Step 4: Simplify right side
    2,145.35x = 3,553,241.99
  5. Step 5: Solve for x
    x = 3,553,241.99/2,145.35
  6. Step 6: Final answer
    x = 1,656.25

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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.