Home / 3,270.42-4,900.80-1,515.96

Finding the Fourth Proportional to 3,270.42, 4,900.80 and 1,515.96

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Solution

The fourth proportional to 3,270.42, 4,900.80 and 1,515.96 is: 2,271.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,270.42 : 4,900.80 = 1,515.96 : x
  2. Step 2: Convert to fraction form
    3,270.42/4,900.80 = 1,515.96/x
  3. Step 3: Cross multiply
    3,270.42x = 4,900.80 × 1,515.96
  4. Step 4: Simplify right side
    3,270.42x = 7,429,416.77
  5. Step 5: Solve for x
    x = 7,429,416.77/3,270.42
  6. Step 6: Final answer
    x = 2,271.70

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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.