Home / 3,288.40-4,928.95-1,646.32

Finding the Fourth Proportional to 3,288.40, 4,928.95 and 1,646.32

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Solution

The fourth proportional to 3,288.40, 4,928.95 and 1,646.32 is: 2,467.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,288.40 : 4,928.95 = 1,646.32 : x
  2. Step 2: Convert to fraction form
    3,288.40/4,928.95 = 1,646.32/x
  3. Step 3: Cross multiply
    3,288.40x = 4,928.95 × 1,646.32
  4. Step 4: Simplify right side
    3,288.40x = 8,114,628.96
  5. Step 5: Solve for x
    x = 8,114,628.96/3,288.40
  6. Step 6: Final answer
    x = 2,467.65

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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.