Home / 2,801.19-3,865.36-1,622.64

Finding the Fourth Proportional to 2,801.19, 3,865.36 and 1,622.64

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Solution

The fourth proportional to 2,801.19, 3,865.36 and 1,622.64 is: 2,239.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,801.19 : 3,865.36 = 1,622.64 : x
  2. Step 2: Convert to fraction form
    2,801.19/3,865.36 = 1,622.64/x
  3. Step 3: Cross multiply
    2,801.19x = 3,865.36 × 1,622.64
  4. Step 4: Simplify right side
    2,801.19x = 6,272,087.75
  5. Step 5: Solve for x
    x = 6,272,087.75/2,801.19
  6. Step 6: Final answer
    x = 2,239.08

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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.