Home / 4,753.79-7,128.20-2,533.80

Finding the Fourth Proportional to 4,753.79, 7,128.20 and 2,533.80

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Solution

The fourth proportional to 4,753.79, 7,128.20 and 2,533.80 is: 3,799.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,753.79 : 7,128.20 = 2,533.80 : x
  2. Step 2: Convert to fraction form
    4,753.79/7,128.20 = 2,533.80/x
  3. Step 3: Cross multiply
    4,753.79x = 7,128.20 × 2,533.80
  4. Step 4: Simplify right side
    4,753.79x = 18,061,420.49
  5. Step 5: Solve for x
    x = 18,061,420.49/4,753.79
  6. Step 6: Final answer
    x = 3,799.38

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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.