Home / 4,623.40-6,939.21-2,159.60

Finding the Fourth Proportional to 4,623.40, 6,939.21 and 2,159.60

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Solution

The fourth proportional to 4,623.40, 6,939.21 and 2,159.60 is: 3,241.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,623.40 : 6,939.21 = 2,159.60 : x
  2. Step 2: Convert to fraction form
    4,623.40/6,939.21 = 2,159.60/x
  3. Step 3: Cross multiply
    4,623.40x = 6,939.21 × 2,159.60
  4. Step 4: Simplify right side
    4,623.40x = 14,985,943.79
  5. Step 5: Solve for x
    x = 14,985,943.79/4,623.40
  6. Step 6: Final answer
    x = 3,241.33

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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.