Home / 1,553.80-2,131.07-1,474.63

Finding the Fourth Proportional to 1,553.80, 2,131.07 and 1,474.63

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Solution

The fourth proportional to 1,553.80, 2,131.07 and 1,474.63 is: 2,022.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,553.80 : 2,131.07 = 1,474.63 : x
  2. Step 2: Convert to fraction form
    1,553.80/2,131.07 = 1,474.63/x
  3. Step 3: Cross multiply
    1,553.80x = 2,131.07 × 1,474.63
  4. Step 4: Simplify right side
    1,553.80x = 3,142,539.75
  5. Step 5: Solve for x
    x = 3,142,539.75/1,553.80
  6. Step 6: Final answer
    x = 2,022.49

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.