Home / 3,488.12-4,782.40-3,425.76

Finding the Fourth Proportional to 3,488.12, 4,782.40 and 3,425.76

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Solution

The fourth proportional to 3,488.12, 4,782.40 and 3,425.76 is: 4,696.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,488.12 : 4,782.40 = 3,425.76 : x
  2. Step 2: Convert to fraction form
    3,488.12/4,782.40 = 3,425.76/x
  3. Step 3: Cross multiply
    3,488.12x = 4,782.40 × 3,425.76
  4. Step 4: Simplify right side
    3,488.12x = 16,383,354.62
  5. Step 5: Solve for x
    x = 16,383,354.62/3,488.12
  6. Step 6: Final answer
    x = 4,696.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.