Home / 4,780.99-7,171.21-2,932.39

Finding the Fourth Proportional to 4,780.99, 7,171.21 and 2,932.39

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Solution

The fourth proportional to 4,780.99, 7,171.21 and 2,932.39 is: 4,398.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,780.99 : 7,171.21 = 2,932.39 : x
  2. Step 2: Convert to fraction form
    4,780.99/7,171.21 = 2,932.39/x
  3. Step 3: Cross multiply
    4,780.99x = 7,171.21 × 2,932.39
  4. Step 4: Simplify right side
    4,780.99x = 21,028,784.49
  5. Step 5: Solve for x
    x = 21,028,784.49/4,780.99
  6. Step 6: Final answer
    x = 4,398.42

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.