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Finding the Fourth Proportional to 2,018.99, 2,786.29 and 1,134.79

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Solution

The fourth proportional to 2,018.99, 2,786.29 and 1,134.79 is: 1,566.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,018.99 : 2,786.29 = 1,134.79 : x
  2. Step 2: Convert to fraction form
    2,018.99/2,786.29 = 1,134.79/x
  3. Step 3: Cross multiply
    2,018.99x = 2,786.29 × 1,134.79
  4. Step 4: Simplify right side
    2,018.99x = 3,161,848.36
  5. Step 5: Solve for x
    x = 3,161,848.36/2,018.99
  6. Step 6: Final answer
    x = 1,566.05

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1.5x scale

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.