Home / 3,911.03-5,397.30-2,418.92

Finding the Fourth Proportional to 3,911.03, 5,397.30 and 2,418.92

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Solution

The fourth proportional to 3,911.03, 5,397.30 and 2,418.92 is: 3,338.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,911.03 : 5,397.30 = 2,418.92 : x
  2. Step 2: Convert to fraction form
    3,911.03/5,397.30 = 2,418.92/x
  3. Step 3: Cross multiply
    3,911.03x = 5,397.30 × 2,418.92
  4. Step 4: Simplify right side
    3,911.03x = 13,055,636.92
  5. Step 5: Solve for x
    x = 13,055,636.92/3,911.03
  6. Step 6: Final answer
    x = 3,338.16

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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.