Home / 2,505.20-3,453.48-1,972.37

Finding the Fourth Proportional to 2,505.20, 3,453.48 and 1,972.37

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Solution

The fourth proportional to 2,505.20, 3,453.48 and 1,972.37 is: 2,718.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,505.20 : 3,453.48 = 1,972.37 : x
  2. Step 2: Convert to fraction form
    2,505.20/3,453.48 = 1,972.37/x
  3. Step 3: Cross multiply
    2,505.20x = 3,453.48 × 1,972.37
  4. Step 4: Simplify right side
    2,505.20x = 6,811,548.98
  5. Step 5: Solve for x
    x = 6,811,548.98/2,505.20
  6. Step 6: Final answer
    x = 2,718.97

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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.