Home / 3,378.24-4,655.88-2,445.12

Finding the Fourth Proportional to 3,378.24, 4,655.88 and 2,445.12

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Solution

The fourth proportional to 3,378.24, 4,655.88 and 2,445.12 is: 3,369.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,378.24 : 4,655.88 = 2,445.12 : x
  2. Step 2: Convert to fraction form
    3,378.24/4,655.88 = 2,445.12/x
  3. Step 3: Cross multiply
    3,378.24x = 4,655.88 × 2,445.12
  4. Step 4: Simplify right side
    3,378.24x = 11,384,185.31
  5. Step 5: Solve for x
    x = 11,384,185.31/3,378.24
  6. Step 6: Final answer
    x = 3,369.86

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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.