Home / 3,428.24-5,139.60-1,235.60

Finding the Fourth Proportional to 3,428.24, 5,139.60 and 1,235.60

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Solution

The fourth proportional to 3,428.24, 5,139.60 and 1,235.60 is: 1,852.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,428.24 : 5,139.60 = 1,235.60 : x
  2. Step 2: Convert to fraction form
    3,428.24/5,139.60 = 1,235.60/x
  3. Step 3: Cross multiply
    3,428.24x = 5,139.60 × 1,235.60
  4. Step 4: Simplify right side
    3,428.24x = 6,350,489.76
  5. Step 5: Solve for x
    x = 6,350,489.76/3,428.24
  6. Step 6: Final answer
    x = 1,852.41

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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.