Home / 3,818.50-5,269.53-2,162.50

Finding the Fourth Proportional to 3,818.50, 5,269.53 and 2,162.50

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Solution

The fourth proportional to 3,818.50, 5,269.53 and 2,162.50 is: 2,984.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,818.50 : 5,269.53 = 2,162.50 : x
  2. Step 2: Convert to fraction form
    3,818.50/5,269.53 = 2,162.50/x
  3. Step 3: Cross multiply
    3,818.50x = 5,269.53 × 2,162.50
  4. Step 4: Simplify right side
    3,818.50x = 11,395,358.63
  5. Step 5: Solve for x
    x = 11,395,358.63/3,818.50
  6. Step 6: Final answer
    x = 2,984.25

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.