Home / 2,179.13-3,007.80-1,480.50

Finding the Fourth Proportional to 2,179.13, 3,007.80 and 1,480.50

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Solution

The fourth proportional to 2,179.13, 3,007.80 and 1,480.50 is: 2,043.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,179.13 : 3,007.80 = 1,480.50 : x
  2. Step 2: Convert to fraction form
    2,179.13/3,007.80 = 1,480.50/x
  3. Step 3: Cross multiply
    2,179.13x = 3,007.80 × 1,480.50
  4. Step 4: Simplify right side
    2,179.13x = 4,453,047.90
  5. Step 5: Solve for x
    x = 4,453,047.90/2,179.13
  6. Step 6: Final answer
    x = 2,043.50

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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.