Home / 3,078.89-4,252.80-2,526.21

Finding the Fourth Proportional to 3,078.89, 4,252.80 and 2,526.21

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Solution

The fourth proportional to 3,078.89, 4,252.80 and 2,526.21 is: 3,489.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,078.89 : 4,252.80 = 2,526.21 : x
  2. Step 2: Convert to fraction form
    3,078.89/4,252.80 = 2,526.21/x
  3. Step 3: Cross multiply
    3,078.89x = 4,252.80 × 2,526.21
  4. Step 4: Simplify right side
    3,078.89x = 10,743,487.32
  5. Step 5: Solve for x
    x = 10,743,487.32/3,078.89
  6. Step 6: Final answer
    x = 3,489.41

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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.