Home / 1,468.25-2,202.71-428.27

Finding the Fourth Proportional to 1,468.25, 2,202.71 and 428.27

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Solution

The fourth proportional to 1,468.25, 2,202.71 and 428.27 is: 642.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,468.25 : 2,202.71 = 428.27 : x
  2. Step 2: Convert to fraction form
    1,468.25/2,202.71 = 428.27/x
  3. Step 3: Cross multiply
    1,468.25x = 2,202.71 × 428.27
  4. Step 4: Simplify right side
    1,468.25x = 943,354.61
  5. Step 5: Solve for x
    x = 943,354.61/1,468.25
  6. Step 6: Final answer
    x = 642.50

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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.