Home / 1,468.55-2,202.59-428.33

Finding the Fourth Proportional to 1,468.55, 2,202.59 and 428.33

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Solution

The fourth proportional to 1,468.55, 2,202.59 and 428.33 is: 642.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,468.55 : 2,202.59 = 428.33 : x
  2. Step 2: Convert to fraction form
    1,468.55/2,202.59 = 428.33/x
  3. Step 3: Cross multiply
    1,468.55x = 2,202.59 × 428.33
  4. Step 4: Simplify right side
    1,468.55x = 943,422.22
  5. Step 5: Solve for x
    x = 943,422.22/1,468.55
  6. Step 6: Final answer
    x = 642.42

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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.