Home / 2,110.90-3,165.60-629.68

Finding the Fourth Proportional to 2,110.90, 3,165.60 and 629.68

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Solution

The fourth proportional to 2,110.90, 3,165.60 and 629.68 is: 944.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,110.90 : 3,165.60 = 629.68 : x
  2. Step 2: Convert to fraction form
    2,110.90/3,165.60 = 629.68/x
  3. Step 3: Cross multiply
    2,110.90x = 3,165.60 × 629.68
  4. Step 4: Simplify right side
    2,110.90x = 1,993,315.01
  5. Step 5: Solve for x
    x = 1,993,315.01/2,110.90
  6. Step 6: Final answer
    x = 944.30

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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.