Home / 1,553.93-2,144.37-845.79

Finding the Fourth Proportional to 1,553.93, 2,144.37 and 845.79

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Solution

The fourth proportional to 1,553.93, 2,144.37 and 845.79 is: 1,167.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,553.93 : 2,144.37 = 845.79 : x
  2. Step 2: Convert to fraction form
    1,553.93/2,144.37 = 845.79/x
  3. Step 3: Cross multiply
    1,553.93x = 2,144.37 × 845.79
  4. Step 4: Simplify right side
    1,553.93x = 1,813,675.98
  5. Step 5: Solve for x
    x = 1,813,675.98/1,553.93
  6. Step 6: Final answer
    x = 1,167.15

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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.