Home / 2,018.12-2,784.96-1,133.90

Finding the Fourth Proportional to 2,018.12, 2,784.96 and 1,133.90

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Solution

The fourth proportional to 2,018.12, 2,784.96 and 1,133.90 is: 1,564.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,018.12 : 2,784.96 = 1,133.90 : x
  2. Step 2: Convert to fraction form
    2,018.12/2,784.96 = 1,133.90/x
  3. Step 3: Cross multiply
    2,018.12x = 2,784.96 × 1,133.90
  4. Step 4: Simplify right side
    2,018.12x = 3,157,866.14
  5. Step 5: Solve for x
    x = 3,157,866.14/2,018.12
  6. Step 6: Final answer
    x = 1,564.76

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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.