Home / 2,179.56-3,006.84-1,432.56

Finding the Fourth Proportional to 2,179.56, 3,006.84 and 1,432.56

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Solution

The fourth proportional to 2,179.56, 3,006.84 and 1,432.56 is: 1,976.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,179.56 : 3,006.84 = 1,432.56 : x
  2. Step 2: Convert to fraction form
    2,179.56/3,006.84 = 1,432.56/x
  3. Step 3: Cross multiply
    2,179.56x = 3,006.84 × 1,432.56
  4. Step 4: Simplify right side
    2,179.56x = 4,307,478.71
  5. Step 5: Solve for x
    x = 4,307,478.71/2,179.56
  6. Step 6: Final answer
    x = 1,976.31

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.