Home / 1,528.10-2,286.68-1,323.38

Finding the Fourth Proportional to 1,528.10, 2,286.68 and 1,323.38

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Solution

The fourth proportional to 1,528.10, 2,286.68 and 1,323.38 is: 1,980.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,528.10 : 2,286.68 = 1,323.38 : x
  2. Step 2: Convert to fraction form
    1,528.10/2,286.68 = 1,323.38/x
  3. Step 3: Cross multiply
    1,528.10x = 2,286.68 × 1,323.38
  4. Step 4: Simplify right side
    1,528.10x = 3,026,146.58
  5. Step 5: Solve for x
    x = 3,026,146.58/1,528.10
  6. Step 6: Final answer
    x = 1,980.33

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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.