Home / 3,189.07-4,400.90-1,772.74

Finding the Fourth Proportional to 3,189.07, 4,400.90 and 1,772.74

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Solution

The fourth proportional to 3,189.07, 4,400.90 and 1,772.74 is: 2,446.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,189.07 : 4,400.90 = 1,772.74 : x
  2. Step 2: Convert to fraction form
    3,189.07/4,400.90 = 1,772.74/x
  3. Step 3: Cross multiply
    3,189.07x = 4,400.90 × 1,772.74
  4. Step 4: Simplify right side
    3,189.07x = 7,801,638.25
  5. Step 5: Solve for x
    x = 7,801,638.25/3,189.07
  6. Step 6: Final answer
    x = 2,446.37

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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.