Home / 3,431.65-5,148.70-1,350.50

Finding the Fourth Proportional to 3,431.65, 5,148.70 and 1,350.50

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Solution

The fourth proportional to 3,431.65, 5,148.70 and 1,350.50 is: 2,026.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,431.65 : 5,148.70 = 1,350.50 : x
  2. Step 2: Convert to fraction form
    3,431.65/5,148.70 = 1,350.50/x
  3. Step 3: Cross multiply
    3,431.65x = 5,148.70 × 1,350.50
  4. Step 4: Simplify right side
    3,431.65x = 6,953,309.54
  5. Step 5: Solve for x
    x = 6,953,309.54/3,431.65
  6. Step 6: Final answer
    x = 2,026.23

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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.