Home / 3,759.34-5,190.23-2,415.49

Finding the Fourth Proportional to 3,759.34, 5,190.23 and 2,415.49

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Solution

The fourth proportional to 3,759.34, 5,190.23 and 2,415.49 is: 3,334.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,759.34 : 5,190.23 = 2,415.49 : x
  2. Step 2: Convert to fraction form
    3,759.34/5,190.23 = 2,415.49/x
  3. Step 3: Cross multiply
    3,759.34x = 5,190.23 × 2,415.49
  4. Step 4: Simplify right side
    3,759.34x = 12,536,922.71
  5. Step 5: Solve for x
    x = 12,536,922.71/3,759.34
  6. Step 6: Final answer
    x = 3,334.88

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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.