Home / 2,189.34-3,283.45-629.35

Finding the Fourth Proportional to 2,189.34, 3,283.45 and 629.35

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Solution

The fourth proportional to 2,189.34, 3,283.45 and 629.35 is: 943.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,189.34 : 3,283.45 = 629.35 : x
  2. Step 2: Convert to fraction form
    2,189.34/3,283.45 = 629.35/x
  3. Step 3: Cross multiply
    2,189.34x = 3,283.45 × 629.35
  4. Step 4: Simplify right side
    2,189.34x = 2,066,429.48
  5. Step 5: Solve for x
    x = 2,066,429.48/2,189.34
  6. Step 6: Final answer
    x = 943.86

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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.