Home / 2,081.24-2,871.80-1,577.37

Finding the Fourth Proportional to 2,081.24, 2,871.80 and 1,577.37

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Solution

The fourth proportional to 2,081.24, 2,871.80 and 1,577.37 is: 2,176.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,081.24 : 2,871.80 = 1,577.37 : x
  2. Step 2: Convert to fraction form
    2,081.24/2,871.80 = 1,577.37/x
  3. Step 3: Cross multiply
    2,081.24x = 2,871.80 × 1,577.37
  4. Step 4: Simplify right side
    2,081.24x = 4,529,908.84
  5. Step 5: Solve for x
    x = 4,529,908.84/2,081.24
  6. Step 6: Final answer
    x = 2,176.55

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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.