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Finding the Fourth Proportional to 2,844, 3,925.80 and 1,913.04

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Solution

The fourth proportional to 2,844, 3,925.80 and 1,913.04 is: 2,640.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,844 : 3,925.80 = 1,913.04 : x
  2. Step 2: Convert to fraction form
    2,844/3,925.80 = 1,913.04/x
  3. Step 3: Cross multiply
    2,844x = 3,925.80 × 1,913.04
  4. Step 4: Simplify right side
    2,844x = 7,510,212.43
  5. Step 5: Solve for x
    x = 7,510,212.43/2,844
  6. Step 6: Final answer
    x = 2,640.72

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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.