Home / 3,015.43-4,524.53-1,553.78

Finding the Fourth Proportional to 3,015.43, 4,524.53 and 1,553.78

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Solution

The fourth proportional to 3,015.43, 4,524.53 and 1,553.78 is: 2,331.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,015.43 : 4,524.53 = 1,553.78 : x
  2. Step 2: Convert to fraction form
    3,015.43/4,524.53 = 1,553.78/x
  3. Step 3: Cross multiply
    3,015.43x = 4,524.53 × 1,553.78
  4. Step 4: Simplify right side
    3,015.43x = 7,030,127.77
  5. Step 5: Solve for x
    x = 7,030,127.77/3,015.43
  6. Step 6: Final answer
    x = 2,331.39

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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.