Home / 3,084.48-4,622.40-1,621.44

Finding the Fourth Proportional to 3,084.48, 4,622.40 and 1,621.44

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Solution

The fourth proportional to 3,084.48, 4,622.40 and 1,621.44 is: 2,429.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,084.48 : 4,622.40 = 1,621.44 : x
  2. Step 2: Convert to fraction form
    3,084.48/4,622.40 = 1,621.44/x
  3. Step 3: Cross multiply
    3,084.48x = 4,622.40 × 1,621.44
  4. Step 4: Simplify right side
    3,084.48x = 7,494,944.26
  5. Step 5: Solve for x
    x = 7,494,944.26/3,084.48
  6. Step 6: Final answer
    x = 2,429.89

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1.5x scale

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.