Home / 3,529.89-5,290.26-2,645.45

Finding the Fourth Proportional to 3,529.89, 5,290.26 and 2,645.45

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Solution

The fourth proportional to 3,529.89, 5,290.26 and 2,645.45 is: 3,964.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,529.89 : 5,290.26 = 2,645.45 : x
  2. Step 2: Convert to fraction form
    3,529.89/5,290.26 = 2,645.45/x
  3. Step 3: Cross multiply
    3,529.89x = 5,290.26 × 2,645.45
  4. Step 4: Simplify right side
    3,529.89x = 13,995,091.87
  5. Step 5: Solve for x
    x = 13,995,091.87/3,529.89
  6. Step 6: Final answer
    x = 3,964.74

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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.