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Finding the Fourth Proportional to 2,011.58, 3,018.04 and 779.00

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Solution

The fourth proportional to 2,011.58, 3,018.04 and 779.00 is: 1,168.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,011.58 : 3,018.04 = 779.00 : x
  2. Step 2: Convert to fraction form
    2,011.58/3,018.04 = 779.00/x
  3. Step 3: Cross multiply
    2,011.58x = 3,018.04 × 779.00
  4. Step 4: Simplify right side
    2,011.58x = 2,351,058.76
  5. Step 5: Solve for x
    x = 2,351,058.76/2,011.58
  6. Step 6: Final answer
    x = 1,168.76

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.