Home / 2,120.84-2,928.08-1,336.04

Finding the Fourth Proportional to 2,120.84, 2,928.08 and 1,336.04

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Solution

The fourth proportional to 2,120.84, 2,928.08 and 1,336.04 is: 1,844.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,120.84 : 2,928.08 = 1,336.04 : x
  2. Step 2: Convert to fraction form
    2,120.84/2,928.08 = 1,336.04/x
  3. Step 3: Cross multiply
    2,120.84x = 2,928.08 × 1,336.04
  4. Step 4: Simplify right side
    2,120.84x = 3,912,032.00
  5. Step 5: Solve for x
    x = 3,912,032.00/2,120.84
  6. Step 6: Final answer
    x = 1,844.57

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.