Home / 3,857.48-5,323.14-2,285.32

Finding the Fourth Proportional to 3,857.48, 5,323.14 and 2,285.32

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Solution

The fourth proportional to 3,857.48, 5,323.14 and 2,285.32 is: 3,153.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,857.48 : 5,323.14 = 2,285.32 : x
  2. Step 2: Convert to fraction form
    3,857.48/5,323.14 = 2,285.32/x
  3. Step 3: Cross multiply
    3,857.48x = 5,323.14 × 2,285.32
  4. Step 4: Simplify right side
    3,857.48x = 12,165,078.30
  5. Step 5: Solve for x
    x = 12,165,078.30/3,857.48
  6. Step 6: Final answer
    x = 3,153.63

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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.