Home / 3,933.75-5,426.17-2,421.55

Finding the Fourth Proportional to 3,933.75, 5,426.17 and 2,421.55

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Solution

The fourth proportional to 3,933.75, 5,426.17 and 2,421.55 is: 3,340.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,933.75 : 5,426.17 = 2,421.55 : x
  2. Step 2: Convert to fraction form
    3,933.75/5,426.17 = 2,421.55/x
  3. Step 3: Cross multiply
    3,933.75x = 5,426.17 × 2,421.55
  4. Step 4: Simplify right side
    3,933.75x = 13,139,741.96
  5. Step 5: Solve for x
    x = 13,139,741.96/3,933.75
  6. Step 6: Final answer
    x = 3,340.26

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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.