Home / 3,108.14-4,288.79-1,710.89

Finding the Fourth Proportional to 3,108.14, 4,288.79 and 1,710.89

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Solution

The fourth proportional to 3,108.14, 4,288.79 and 1,710.89 is: 2,360.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,108.14 : 4,288.79 = 1,710.89 : x
  2. Step 2: Convert to fraction form
    3,108.14/4,288.79 = 1,710.89/x
  3. Step 3: Cross multiply
    3,108.14x = 4,288.79 × 1,710.89
  4. Step 4: Simplify right side
    3,108.14x = 7,337,639.37
  5. Step 5: Solve for x
    x = 7,337,639.37/3,108.14
  6. Step 6: Final answer
    x = 2,360.78

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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.