Home / 3,921.53-5,406.45-3,359.58

Finding the Fourth Proportional to 3,921.53, 5,406.45 and 3,359.58

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Solution

The fourth proportional to 3,921.53, 5,406.45 and 3,359.58 is: 4,631.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,921.53 : 5,406.45 = 3,359.58 : x
  2. Step 2: Convert to fraction form
    3,921.53/5,406.45 = 3,359.58/x
  3. Step 3: Cross multiply
    3,921.53x = 5,406.45 × 3,359.58
  4. Step 4: Simplify right side
    3,921.53x = 18,163,401.29
  5. Step 5: Solve for x
    x = 18,163,401.29/3,921.53
  6. Step 6: Final answer
    x = 4,631.72

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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.