Home / 2,768.31-4,154.54-1,125.99

Finding the Fourth Proportional to 2,768.31, 4,154.54 and 1,125.99

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Solution

The fourth proportional to 2,768.31, 4,154.54 and 1,125.99 is: 1,689.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,768.31 : 4,154.54 = 1,125.99 : x
  2. Step 2: Convert to fraction form
    2,768.31/4,154.54 = 1,125.99/x
  3. Step 3: Cross multiply
    2,768.31x = 4,154.54 × 1,125.99
  4. Step 4: Simplify right side
    2,768.31x = 4,677,964.86
  5. Step 5: Solve for x
    x = 4,677,964.86/2,768.31
  6. Step 6: Final answer
    x = 1,689.83

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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.