Home / 1,528.25-2,292.26-488.21

Finding the Fourth Proportional to 1,528.25, 2,292.26 and 488.21

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Solution

The fourth proportional to 1,528.25, 2,292.26 and 488.21 is: 732.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,528.25 : 2,292.26 = 488.21 : x
  2. Step 2: Convert to fraction form
    1,528.25/2,292.26 = 488.21/x
  3. Step 3: Cross multiply
    1,528.25x = 2,292.26 × 488.21
  4. Step 4: Simplify right side
    1,528.25x = 1,119,104.25
  5. Step 5: Solve for x
    x = 1,119,104.25/1,528.25
  6. Step 6: Final answer
    x = 732.28

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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.