Home / 3,428.88-5,139.19-1,577.46

Finding the Fourth Proportional to 3,428.88, 5,139.19 and 1,577.46

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Solution

The fourth proportional to 3,428.88, 5,139.19 and 1,577.46 is: 2,364.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,428.88 : 5,139.19 = 1,577.46 : x
  2. Step 2: Convert to fraction form
    3,428.88/5,139.19 = 1,577.46/x
  3. Step 3: Cross multiply
    3,428.88x = 5,139.19 × 1,577.46
  4. Step 4: Simplify right side
    3,428.88x = 8,106,858.77
  5. Step 5: Solve for x
    x = 8,106,858.77/3,428.88
  6. Step 6: Final answer
    x = 2,364.29

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.