Home / 4,218.81-6,328.52-1,621.74

Finding the Fourth Proportional to 4,218.81, 6,328.52 and 1,621.74

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Solution

The fourth proportional to 4,218.81, 6,328.52 and 1,621.74 is: 2,432.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,218.81 : 6,328.52 = 1,621.74 : x
  2. Step 2: Convert to fraction form
    4,218.81/6,328.52 = 1,621.74/x
  3. Step 3: Cross multiply
    4,218.81x = 6,328.52 × 1,621.74
  4. Step 4: Simplify right side
    4,218.81x = 10,263,205.92
  5. Step 5: Solve for x
    x = 10,263,205.92/4,218.81
  6. Step 6: Final answer
    x = 2,432.73

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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.