Home / 2,179.19-3,006.38-1,432.17

Finding the Fourth Proportional to 2,179.19, 3,006.38 and 1,432.17

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Solution

The fourth proportional to 2,179.19, 3,006.38 and 1,432.17 is: 1,975.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,179.19 : 3,006.38 = 1,432.17 : x
  2. Step 2: Convert to fraction form
    2,179.19/3,006.38 = 1,432.17/x
  3. Step 3: Cross multiply
    2,179.19x = 3,006.38 × 1,432.17
  4. Step 4: Simplify right side
    2,179.19x = 4,305,647.24
  5. Step 5: Solve for x
    x = 4,305,647.24/2,179.19
  6. Step 6: Final answer
    x = 1,975.80

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1.5x scale

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.