Home / 3,108.12-4,289.20-1,710.87

Finding the Fourth Proportional to 3,108.12, 4,289.20 and 1,710.87

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Solution

The fourth proportional to 3,108.12, 4,289.20 and 1,710.87 is: 2,361.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,108.12 : 4,289.20 = 1,710.87 : x
  2. Step 2: Convert to fraction form
    3,108.12/4,289.20 = 1,710.87/x
  3. Step 3: Cross multiply
    3,108.12x = 4,289.20 × 1,710.87
  4. Step 4: Simplify right side
    3,108.12x = 7,338,249.66
  5. Step 5: Solve for x
    x = 7,338,249.66/3,108.12
  6. Step 6: Final answer
    x = 2,361.00

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.