Home / 3,212.31-4,815.81-1,432.08

Finding the Fourth Proportional to 3,212.31, 4,815.81 and 1,432.08

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Solution

The fourth proportional to 3,212.31, 4,815.81 and 1,432.08 is: 2,146.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,212.31 : 4,815.81 = 1,432.08 : x
  2. Step 2: Convert to fraction form
    3,212.31/4,815.81 = 1,432.08/x
  3. Step 3: Cross multiply
    3,212.31x = 4,815.81 × 1,432.08
  4. Step 4: Simplify right side
    3,212.31x = 6,896,625.18
  5. Step 5: Solve for x
    x = 6,896,625.18/3,212.31
  6. Step 6: Final answer
    x = 2,146.94

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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.