Home / 2,868.70-4,308.33-1,721.50

Finding the Fourth Proportional to 2,868.70, 4,308.33 and 1,721.50

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Solution

The fourth proportional to 2,868.70, 4,308.33 and 1,721.50 is: 2,585.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,868.70 : 4,308.33 = 1,721.50 : x
  2. Step 2: Convert to fraction form
    2,868.70/4,308.33 = 1,721.50/x
  3. Step 3: Cross multiply
    2,868.70x = 4,308.33 × 1,721.50
  4. Step 4: Simplify right side
    2,868.70x = 7,416,790.10
  5. Step 5: Solve for x
    x = 7,416,790.10/2,868.70
  6. Step 6: Final answer
    x = 2,585.42

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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.