Home / 3,219.40-4,451.04-2,475.82

Finding the Fourth Proportional to 3,219.40, 4,451.04 and 2,475.82

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Solution

The fourth proportional to 3,219.40, 4,451.04 and 2,475.82 is: 3,422.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,219.40 : 4,451.04 = 2,475.82 : x
  2. Step 2: Convert to fraction form
    3,219.40/4,451.04 = 2,475.82/x
  3. Step 3: Cross multiply
    3,219.40x = 4,451.04 × 2,475.82
  4. Step 4: Simplify right side
    3,219.40x = 11,019,973.85
  5. Step 5: Solve for x
    x = 11,019,973.85/3,219.40
  6. Step 6: Final answer
    x = 3,422.99

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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.