Home / 1,577.09-2,176.65-1,203.37

Finding the Fourth Proportional to 1,577.09, 2,176.65 and 1,203.37

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Solution

The fourth proportional to 1,577.09, 2,176.65 and 1,203.37 is: 1,660.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,577.09 : 2,176.65 = 1,203.37 : x
  2. Step 2: Convert to fraction form
    1,577.09/2,176.65 = 1,203.37/x
  3. Step 3: Cross multiply
    1,577.09x = 2,176.65 × 1,203.37
  4. Step 4: Simplify right side
    1,577.09x = 2,619,309.87
  5. Step 5: Solve for x
    x = 2,619,309.87/1,577.09
  6. Step 6: Final answer
    x = 1,660.85

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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.