Home / 2,070.20-3,105.42-837.58

Finding the Fourth Proportional to 2,070.20, 3,105.42 and 837.58

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Solution

The fourth proportional to 2,070.20, 3,105.42 and 837.58 is: 1,256.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,070.20 : 3,105.42 = 837.58 : x
  2. Step 2: Convert to fraction form
    2,070.20/3,105.42 = 837.58/x
  3. Step 3: Cross multiply
    2,070.20x = 3,105.42 × 837.58
  4. Step 4: Simplify right side
    2,070.20x = 2,601,037.68
  5. Step 5: Solve for x
    x = 2,601,037.68/2,070.20
  6. Step 6: Final answer
    x = 1,256.42

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1.5x scale

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.