Home / 1,528.47-2,292.75-488.58

Finding the Fourth Proportional to 1,528.47, 2,292.75 and 488.58

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Solution

The fourth proportional to 1,528.47, 2,292.75 and 488.58 is: 732.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,528.47 : 2,292.75 = 488.58 : x
  2. Step 2: Convert to fraction form
    1,528.47/2,292.75 = 488.58/x
  3. Step 3: Cross multiply
    1,528.47x = 2,292.75 × 488.58
  4. Step 4: Simplify right side
    1,528.47x = 1,120,191.80
  5. Step 5: Solve for x
    x = 1,120,191.80/1,528.47
  6. Step 6: Final answer
    x = 732.88

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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.