Home / 3,874.08-5,345.72-2,455.26

Finding the Fourth Proportional to 3,874.08, 5,345.72 and 2,455.26

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Solution

The fourth proportional to 3,874.08, 5,345.72 and 2,455.26 is: 3,387.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,874.08 : 5,345.72 = 2,455.26 : x
  2. Step 2: Convert to fraction form
    3,874.08/5,345.72 = 2,455.26/x
  3. Step 3: Cross multiply
    3,874.08x = 5,345.72 × 2,455.26
  4. Step 4: Simplify right side
    3,874.08x = 13,125,120.21
  5. Step 5: Solve for x
    x = 13,125,120.21/3,874.08
  6. Step 6: Final answer
    x = 3,387.93

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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.