Home / 2,819.70-4,210.36-2,487.87

Finding the Fourth Proportional to 2,819.70, 4,210.36 and 2,487.87

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Solution

The fourth proportional to 2,819.70, 4,210.36 and 2,487.87 is: 3,714.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,819.70 : 4,210.36 = 2,487.87 : x
  2. Step 2: Convert to fraction form
    2,819.70/4,210.36 = 2,487.87/x
  3. Step 3: Cross multiply
    2,819.70x = 4,210.36 × 2,487.87
  4. Step 4: Simplify right side
    2,819.70x = 10,474,828.33
  5. Step 5: Solve for x
    x = 10,474,828.33/2,819.70
  6. Step 6: Final answer
    x = 3,714.87

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.