Home / 4,209.93-6,318.80-2,131.41

Finding the Fourth Proportional to 4,209.93, 6,318.80 and 2,131.41

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Solution

The fourth proportional to 4,209.93, 6,318.80 and 2,131.41 is: 3,199.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,209.93 : 6,318.80 = 2,131.41 : x
  2. Step 2: Convert to fraction form
    4,209.93/6,318.80 = 2,131.41/x
  3. Step 3: Cross multiply
    4,209.93x = 6,318.80 × 2,131.41
  4. Step 4: Simplify right side
    4,209.93x = 13,467,953.51
  5. Step 5: Solve for x
    x = 13,467,953.51/4,209.93
  6. Step 6: Final answer
    x = 3,199.09

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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.