Home / 2,867.78-3,957.59-1,608.77

Finding the Fourth Proportional to 2,867.78, 3,957.59 and 1,608.77

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Solution

The fourth proportional to 2,867.78, 3,957.59 and 1,608.77 is: 2,220.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,867.78 : 3,957.59 = 1,608.77 : x
  2. Step 2: Convert to fraction form
    2,867.78/3,957.59 = 1,608.77/x
  3. Step 3: Cross multiply
    2,867.78x = 3,957.59 × 1,608.77
  4. Step 4: Simplify right side
    2,867.78x = 6,366,852.06
  5. Step 5: Solve for x
    x = 6,366,852.06/2,867.78
  6. Step 6: Final answer
    x = 2,220.13

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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.