Home / 2,528.32-3,790.32-1,230.40

Finding the Fourth Proportional to 2,528.32, 3,790.32 and 1,230.40

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Solution

The fourth proportional to 2,528.32, 3,790.32 and 1,230.40 is: 1,844.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,528.32 : 3,790.32 = 1,230.40 : x
  2. Step 2: Convert to fraction form
    2,528.32/3,790.32 = 1,230.40/x
  3. Step 3: Cross multiply
    2,528.32x = 3,790.32 × 1,230.40
  4. Step 4: Simplify right side
    2,528.32x = 4,663,609.73
  5. Step 5: Solve for x
    x = 4,663,609.73/2,528.32
  6. Step 6: Final answer
    x = 1,844.55

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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.