Home / 2,726.40-4,108.80-2,553.60

Finding the Fourth Proportional to 2,726.40, 4,108.80 and 2,553.60

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Solution

The fourth proportional to 2,726.40, 4,108.80 and 2,553.60 is: 3,848.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,726.40 : 4,108.80 = 2,553.60 : x
  2. Step 2: Convert to fraction form
    2,726.40/4,108.80 = 2,553.60/x
  3. Step 3: Cross multiply
    2,726.40x = 4,108.80 × 2,553.60
  4. Step 4: Simplify right side
    2,726.40x = 10,492,231.68
  5. Step 5: Solve for x
    x = 10,492,231.68/2,726.40
  6. Step 6: Final answer
    x = 3,848.38

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.