Home / 3,124.82-4,687.24-1,977.86

Finding the Fourth Proportional to 3,124.82, 4,687.24 and 1,977.86

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Solution

The fourth proportional to 3,124.82, 4,687.24 and 1,977.86 is: 2,966.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,124.82 : 4,687.24 = 1,977.86 : x
  2. Step 2: Convert to fraction form
    3,124.82/4,687.24 = 1,977.86/x
  3. Step 3: Cross multiply
    3,124.82x = 4,687.24 × 1,977.86
  4. Step 4: Simplify right side
    3,124.82x = 9,270,704.51
  5. Step 5: Solve for x
    x = 9,270,704.51/3,124.82
  6. Step 6: Final answer
    x = 2,966.80

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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.