Home / 4,270.40-6,405.60-3,285.44

Finding the Fourth Proportional to 4,270.40, 6,405.60 and 3,285.44

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Solution

The fourth proportional to 4,270.40, 6,405.60 and 3,285.44 is: 4,928.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,270.40 : 6,405.60 = 3,285.44 : x
  2. Step 2: Convert to fraction form
    4,270.40/6,405.60 = 3,285.44/x
  3. Step 3: Cross multiply
    4,270.40x = 6,405.60 × 3,285.44
  4. Step 4: Simplify right side
    4,270.40x = 21,045,214.46
  5. Step 5: Solve for x
    x = 21,045,214.46/4,270.40
  6. Step 6: Final answer
    x = 4,928.16

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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.