Home / 3,107.75-4,288.98-1,710.77

Finding the Fourth Proportional to 3,107.75, 4,288.98 and 1,710.77

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Solution

The fourth proportional to 3,107.75, 4,288.98 and 1,710.77 is: 2,361.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,107.75 : 4,288.98 = 1,710.77 : x
  2. Step 2: Convert to fraction form
    3,107.75/4,288.98 = 1,710.77/x
  3. Step 3: Cross multiply
    3,107.75x = 4,288.98 × 1,710.77
  4. Step 4: Simplify right side
    3,107.75x = 7,337,458.31
  5. Step 5: Solve for x
    x = 7,337,458.31/3,107.75
  6. Step 6: Final answer
    x = 2,361.02

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1.5x scale

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.