Home / 2,068.08-3,076.84-1,987.89

Finding the Fourth Proportional to 2,068.08, 3,076.84 and 1,987.89

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Solution

The fourth proportional to 2,068.08, 3,076.84 and 1,987.89 is: 2,957.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,068.08 : 3,076.84 = 1,987.89 : x
  2. Step 2: Convert to fraction form
    2,068.08/3,076.84 = 1,987.89/x
  3. Step 3: Cross multiply
    2,068.08x = 3,076.84 × 1,987.89
  4. Step 4: Simplify right side
    2,068.08x = 6,116,416.54
  5. Step 5: Solve for x
    x = 6,116,416.54/2,068.08
  6. Step 6: Final answer
    x = 2,957.53

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.