Home / 3,782.05-5,672.40-2,392.90

Finding the Fourth Proportional to 3,782.05, 5,672.40 and 2,392.90

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Solution

The fourth proportional to 3,782.05, 5,672.40 and 2,392.90 is: 3,588.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,782.05 : 5,672.40 = 2,392.90 : x
  2. Step 2: Convert to fraction form
    3,782.05/5,672.40 = 2,392.90/x
  3. Step 3: Cross multiply
    3,782.05x = 5,672.40 × 2,392.90
  4. Step 4: Simplify right side
    3,782.05x = 13,573,485.96
  5. Step 5: Solve for x
    x = 13,573,485.96/3,782.05
  6. Step 6: Final answer
    x = 3,588.92

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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.