Home / 3,782.77-5,215.67-3,154.21

Finding the Fourth Proportional to 3,782.77, 5,215.67 and 3,154.21

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Solution

The fourth proportional to 3,782.77, 5,215.67 and 3,154.21 is: 4,349.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,782.77 : 5,215.67 = 3,154.21 : x
  2. Step 2: Convert to fraction form
    3,782.77/5,215.67 = 3,154.21/x
  3. Step 3: Cross multiply
    3,782.77x = 5,215.67 × 3,154.21
  4. Step 4: Simplify right side
    3,782.77x = 16,451,318.47
  5. Step 5: Solve for x
    x = 16,451,318.47/3,782.77
  6. Step 6: Final answer
    x = 4,349.01

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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.