Home / 3,108.06-4,289.01-1,710.78

Finding the Fourth Proportional to 3,108.06, 4,289.01 and 1,710.78

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Solution

The fourth proportional to 3,108.06, 4,289.01 and 1,710.78 is: 2,360.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,108.06 : 4,289.01 = 1,710.78 : x
  2. Step 2: Convert to fraction form
    3,108.06/4,289.01 = 1,710.78/x
  3. Step 3: Cross multiply
    3,108.06x = 4,289.01 × 1,710.78
  4. Step 4: Simplify right side
    3,108.06x = 7,337,552.53
  5. Step 5: Solve for x
    x = 7,337,552.53/3,108.06
  6. Step 6: Final answer
    x = 2,360.81

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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.