Home / 3,874.80-5,345.28-2,456.04

Finding the Fourth Proportional to 3,874.80, 5,345.28 and 2,456.04

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Solution

The fourth proportional to 3,874.80, 5,345.28 and 2,456.04 is: 3,388.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,874.80 : 5,345.28 = 2,456.04 : x
  2. Step 2: Convert to fraction form
    3,874.80/5,345.28 = 2,456.04/x
  3. Step 3: Cross multiply
    3,874.80x = 5,345.28 × 2,456.04
  4. Step 4: Simplify right side
    3,874.80x = 13,128,221.49
  5. Step 5: Solve for x
    x = 13,128,221.49/3,874.80
  6. Step 6: Final answer
    x = 3,388.10

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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.