Home / 1,840.18-2,760.35-1,107.50

Finding the Fourth Proportional to 1,840.18, 2,760.35 and 1,107.50

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Solution

The fourth proportional to 1,840.18, 2,760.35 and 1,107.50 is: 1,661.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,840.18 : 2,760.35 = 1,107.50 : x
  2. Step 2: Convert to fraction form
    1,840.18/2,760.35 = 1,107.50/x
  3. Step 3: Cross multiply
    1,840.18x = 2,760.35 × 1,107.50
  4. Step 4: Simplify right side
    1,840.18x = 3,057,087.63
  5. Step 5: Solve for x
    x = 3,057,087.63/1,840.18
  6. Step 6: Final answer
    x = 1,661.30

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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.