Home / 3,528.74-5,300.67-2,142.76

Finding the Fourth Proportional to 3,528.74, 5,300.67 and 2,142.76

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Solution

The fourth proportional to 3,528.74, 5,300.67 and 2,142.76 is: 3,218.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,528.74 : 5,300.67 = 2,142.76 : x
  2. Step 2: Convert to fraction form
    3,528.74/5,300.67 = 2,142.76/x
  3. Step 3: Cross multiply
    3,528.74x = 5,300.67 × 2,142.76
  4. Step 4: Simplify right side
    3,528.74x = 11,358,063.65
  5. Step 5: Solve for x
    x = 11,358,063.65/3,528.74
  6. Step 6: Final answer
    x = 3,218.73

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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.