Home / 2,815.04-3,884.64-1,636.16

Finding the Fourth Proportional to 2,815.04, 3,884.64 and 1,636.16

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Solution

The fourth proportional to 2,815.04, 3,884.64 and 1,636.16 is: 2,257.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,815.04 : 3,884.64 = 1,636.16 : x
  2. Step 2: Convert to fraction form
    2,815.04/3,884.64 = 1,636.16/x
  3. Step 3: Cross multiply
    2,815.04x = 3,884.64 × 1,636.16
  4. Step 4: Simplify right side
    2,815.04x = 6,355,892.58
  5. Step 5: Solve for x
    x = 6,355,892.58/2,815.04
  6. Step 6: Final answer
    x = 2,257.83

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.