Home / 1,836.18-2,760.35-1,425.51

Finding the Fourth Proportional to 1,836.18, 2,760.35 and 1,425.51

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Solution

The fourth proportional to 1,836.18, 2,760.35 and 1,425.51 is: 2,142.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,836.18 : 2,760.35 = 1,425.51 : x
  2. Step 2: Convert to fraction form
    1,836.18/2,760.35 = 1,425.51/x
  3. Step 3: Cross multiply
    1,836.18x = 2,760.35 × 1,425.51
  4. Step 4: Simplify right side
    1,836.18x = 3,934,899.40
  5. Step 5: Solve for x
    x = 3,934,899.40/1,836.18
  6. Step 6: Final answer
    x = 2,142.98

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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.