Home / 3,720.35-5,574.94-2,156.69

Finding the Fourth Proportional to 3,720.35, 5,574.94 and 2,156.69

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Solution

The fourth proportional to 3,720.35, 5,574.94 and 2,156.69 is: 3,231.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,720.35 : 5,574.94 = 2,156.69 : x
  2. Step 2: Convert to fraction form
    3,720.35/5,574.94 = 2,156.69/x
  3. Step 3: Cross multiply
    3,720.35x = 5,574.94 × 2,156.69
  4. Step 4: Simplify right side
    3,720.35x = 12,023,384.08
  5. Step 5: Solve for x
    x = 12,023,384.08/3,720.35
  6. Step 6: Final answer
    x = 3,231.79

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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.