Home / 3,108.20-4,658.52-1,936.40

Finding the Fourth Proportional to 3,108.20, 4,658.52 and 1,936.40

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Solution

The fourth proportional to 3,108.20, 4,658.52 and 1,936.40 is: 2,902.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,108.20 : 4,658.52 = 1,936.40 : x
  2. Step 2: Convert to fraction form
    3,108.20/4,658.52 = 1,936.40/x
  3. Step 3: Cross multiply
    3,108.20x = 4,658.52 × 1,936.40
  4. Step 4: Simplify right side
    3,108.20x = 9,020,758.13
  5. Step 5: Solve for x
    x = 9,020,758.13/3,108.20
  6. Step 6: Final answer
    x = 2,902.25

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1.5x scale

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.