Home / 2,768.23-4,153.98-1,124.65

Finding the Fourth Proportional to 2,768.23, 4,153.98 and 1,124.65

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Solution

The fourth proportional to 2,768.23, 4,153.98 and 1,124.65 is: 1,687.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,768.23 : 4,153.98 = 1,124.65 : x
  2. Step 2: Convert to fraction form
    2,768.23/4,153.98 = 1,124.65/x
  3. Step 3: Cross multiply
    2,768.23x = 4,153.98 × 1,124.65
  4. Step 4: Simplify right side
    2,768.23x = 4,671,773.61
  5. Step 5: Solve for x
    x = 4,671,773.61/2,768.23
  6. Step 6: Final answer
    x = 1,687.64

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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.