Home / 1,577.88-2,171.34-1,568.43

Finding the Fourth Proportional to 1,577.88, 2,171.34 and 1,568.43

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Solution

The fourth proportional to 1,577.88, 2,171.34 and 1,568.43 is: 2,158.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,577.88 : 2,171.34 = 1,568.43 : x
  2. Step 2: Convert to fraction form
    1,577.88/2,171.34 = 1,568.43/x
  3. Step 3: Cross multiply
    1,577.88x = 2,171.34 × 1,568.43
  4. Step 4: Simplify right side
    1,577.88x = 3,405,594.80
  5. Step 5: Solve for x
    x = 3,405,594.80/1,577.88
  6. Step 6: Final answer
    x = 2,158.34

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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.