Home / 3,418.04-5,127.06-2,639.18

Finding the Fourth Proportional to 3,418.04, 5,127.06 and 2,639.18

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Solution

The fourth proportional to 3,418.04, 5,127.06 and 2,639.18 is: 3,958.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,418.04 : 5,127.06 = 2,639.18 : x
  2. Step 2: Convert to fraction form
    3,418.04/5,127.06 = 2,639.18/x
  3. Step 3: Cross multiply
    3,418.04x = 5,127.06 × 2,639.18
  4. Step 4: Simplify right side
    3,418.04x = 13,531,234.21
  5. Step 5: Solve for x
    x = 13,531,234.21/3,418.04
  6. Step 6: Final answer
    x = 3,958.77

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.