Home / 3,929.64-5,895.26-1,621.32

Finding the Fourth Proportional to 3,929.64, 5,895.26 and 1,621.32

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Solution

The fourth proportional to 3,929.64, 5,895.26 and 1,621.32 is: 2,432.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,929.64 : 5,895.26 = 1,621.32 : x
  2. Step 2: Convert to fraction form
    3,929.64/5,895.26 = 1,621.32/x
  3. Step 3: Cross multiply
    3,929.64x = 5,895.26 × 1,621.32
  4. Step 4: Simplify right side
    3,929.64x = 9,558,102.94
  5. Step 5: Solve for x
    x = 9,558,102.94/3,929.64
  6. Step 6: Final answer
    x = 2,432.31

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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.