Home / 2,767.58-3,819.21-1,572.68

Finding the Fourth Proportional to 2,767.58, 3,819.21 and 1,572.68

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Solution

The fourth proportional to 2,767.58, 3,819.21 and 1,572.68 is: 2,170.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,767.58 : 3,819.21 = 1,572.68 : x
  2. Step 2: Convert to fraction form
    2,767.58/3,819.21 = 1,572.68/x
  3. Step 3: Cross multiply
    2,767.58x = 3,819.21 × 1,572.68
  4. Step 4: Simplify right side
    2,767.58x = 6,006,395.18
  5. Step 5: Solve for x
    x = 6,006,395.18/2,767.58
  6. Step 6: Final answer
    x = 2,170.27

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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.