Home / 2,528.46-3,792.69-1,228.81

Finding the Fourth Proportional to 2,528.46, 3,792.69 and 1,228.81

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Solution

The fourth proportional to 2,528.46, 3,792.69 and 1,228.81 is: 1,843.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,528.46 : 3,792.69 = 1,228.81 : x
  2. Step 2: Convert to fraction form
    2,528.46/3,792.69 = 1,228.81/x
  3. Step 3: Cross multiply
    2,528.46x = 3,792.69 × 1,228.81
  4. Step 4: Simplify right side
    2,528.46x = 4,660,495.40
  5. Step 5: Solve for x
    x = 4,660,495.40/2,528.46
  6. Step 6: Final answer
    x = 1,843.22

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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.