Home / 3,108.81-4,308.64-3,050.49

Finding the Fourth Proportional to 3,108.81, 4,308.64 and 3,050.49

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Solution

The fourth proportional to 3,108.81, 4,308.64 and 3,050.49 is: 4,227.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,108.81 : 4,308.64 = 3,050.49 : x
  2. Step 2: Convert to fraction form
    3,108.81/4,308.64 = 3,050.49/x
  3. Step 3: Cross multiply
    3,108.81x = 4,308.64 × 3,050.49
  4. Step 4: Simplify right side
    3,108.81x = 13,143,463.23
  5. Step 5: Solve for x
    x = 13,143,463.23/3,108.81
  6. Step 6: Final answer
    x = 4,227.81

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.