Home / 5,139.48-7,704.24-2,829.36

Finding the Fourth Proportional to 5,139.48, 7,704.24 and 2,829.36

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Solution

The fourth proportional to 5,139.48, 7,704.24 and 2,829.36 is: 4,241.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,139.48 : 7,704.24 = 2,829.36 : x
  2. Step 2: Convert to fraction form
    5,139.48/7,704.24 = 2,829.36/x
  3. Step 3: Cross multiply
    5,139.48x = 7,704.24 × 2,829.36
  4. Step 4: Simplify right side
    5,139.48x = 21,798,068.49
  5. Step 5: Solve for x
    x = 21,798,068.49/5,139.48
  6. Step 6: Final answer
    x = 4,241.30

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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.