Home / 4,155.84-6,228.33-1,687.77

Finding the Fourth Proportional to 4,155.84, 6,228.33 and 1,687.77

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Solution

The fourth proportional to 4,155.84, 6,228.33 and 1,687.77 is: 2,529.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,155.84 : 6,228.33 = 1,687.77 : x
  2. Step 2: Convert to fraction form
    4,155.84/6,228.33 = 1,687.77/x
  3. Step 3: Cross multiply
    4,155.84x = 6,228.33 × 1,687.77
  4. Step 4: Simplify right side
    4,155.84x = 10,511,957.38
  5. Step 5: Solve for x
    x = 10,511,957.38/4,155.84
  6. Step 6: Final answer
    x = 2,529.45

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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.