Home / 4,487.79-6,734.57-2,178.03

Finding the Fourth Proportional to 4,487.79, 6,734.57 and 2,178.03

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Solution

The fourth proportional to 4,487.79, 6,734.57 and 2,178.03 is: 3,268.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,487.79 : 6,734.57 = 2,178.03 : x
  2. Step 2: Convert to fraction form
    4,487.79/6,734.57 = 2,178.03/x
  3. Step 3: Cross multiply
    4,487.79x = 6,734.57 × 2,178.03
  4. Step 4: Simplify right side
    4,487.79x = 14,668,084.61
  5. Step 5: Solve for x
    x = 14,668,084.61/4,487.79
  6. Step 6: Final answer
    x = 3,268.44

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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.