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Finding the Fourth Proportional to 2,553.76, 3,825.52 and 1,785.76

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Solution

The fourth proportional to 2,553.76, 3,825.52 and 1,785.76 is: 2,675.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,553.76 : 3,825.52 = 1,785.76 : x
  2. Step 2: Convert to fraction form
    2,553.76/3,825.52 = 1,785.76/x
  3. Step 3: Cross multiply
    2,553.76x = 3,825.52 × 1,785.76
  4. Step 4: Simplify right side
    2,553.76x = 6,831,460.60
  5. Step 5: Solve for x
    x = 6,831,460.60/2,553.76
  6. Step 6: Final answer
    x = 2,675.06

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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.