Home / 2,193.21-3,025.53-1,308.51

Finding the Fourth Proportional to 2,193.21, 3,025.53 and 1,308.51

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Solution

The fourth proportional to 2,193.21, 3,025.53 and 1,308.51 is: 1,805.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,193.21 : 3,025.53 = 1,308.51 : x
  2. Step 2: Convert to fraction form
    2,193.21/3,025.53 = 1,308.51/x
  3. Step 3: Cross multiply
    2,193.21x = 3,025.53 × 1,308.51
  4. Step 4: Simplify right side
    2,193.21x = 3,958,936.26
  5. Step 5: Solve for x
    x = 3,958,936.26/2,193.21
  6. Step 6: Final answer
    x = 1,805.09

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1.5x scale

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.