Home / 4,606.41-6,909.60-2,139.87

Finding the Fourth Proportional to 4,606.41, 6,909.60 and 2,139.87

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Solution

The fourth proportional to 4,606.41, 6,909.60 and 2,139.87 is: 3,209.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,606.41 : 6,909.60 = 2,139.87 : x
  2. Step 2: Convert to fraction form
    4,606.41/6,909.60 = 2,139.87/x
  3. Step 3: Cross multiply
    4,606.41x = 6,909.60 × 2,139.87
  4. Step 4: Simplify right side
    4,606.41x = 14,785,645.75
  5. Step 5: Solve for x
    x = 14,785,645.75/4,606.41
  6. Step 6: Final answer
    x = 3,209.80

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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.