Home / 3,378.63-5,064.52-1,621.05

Finding the Fourth Proportional to 3,378.63, 5,064.52 and 1,621.05

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Solution

The fourth proportional to 3,378.63, 5,064.52 and 1,621.05 is: 2,429.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,378.63 : 5,064.52 = 1,621.05 : x
  2. Step 2: Convert to fraction form
    3,378.63/5,064.52 = 1,621.05/x
  3. Step 3: Cross multiply
    3,378.63x = 5,064.52 × 1,621.05
  4. Step 4: Simplify right side
    3,378.63x = 8,209,840.15
  5. Step 5: Solve for x
    x = 8,209,840.15/3,378.63
  6. Step 6: Final answer
    x = 2,429.93

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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.