Home / 4,172.80-6,255.56-2,089.89

Finding the Fourth Proportional to 4,172.80, 6,255.56 and 2,089.89

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Solution

The fourth proportional to 4,172.80, 6,255.56 and 2,089.89 is: 3,133.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,172.80 : 6,255.56 = 2,089.89 : x
  2. Step 2: Convert to fraction form
    4,172.80/6,255.56 = 2,089.89/x
  3. Step 3: Cross multiply
    4,172.80x = 6,255.56 × 2,089.89
  4. Step 4: Simplify right side
    4,172.80x = 13,073,432.29
  5. Step 5: Solve for x
    x = 13,073,432.29/4,172.80
  6. Step 6: Final answer
    x = 3,133.01

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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.