Home / 4,680.12-7,021.12-1,906.76

Finding the Fourth Proportional to 4,680.12, 7,021.12 and 1,906.76

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Solution

The fourth proportional to 4,680.12, 7,021.12 and 1,906.76 is: 2,860.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,680.12 : 7,021.12 = 1,906.76 : x
  2. Step 2: Convert to fraction form
    4,680.12/7,021.12 = 1,906.76/x
  3. Step 3: Cross multiply
    4,680.12x = 7,021.12 × 1,906.76
  4. Step 4: Simplify right side
    4,680.12x = 13,387,590.77
  5. Step 5: Solve for x
    x = 13,387,590.77/4,680.12
  6. Step 6: Final answer
    x = 2,860.52

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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.