Home / 7,780.83-11,664.77-2,849.55

Finding the Fourth Proportional to 7,780.83, 11,664.77 and 2,849.55

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Solution

The fourth proportional to 7,780.83, 11,664.77 and 2,849.55 is: 4,271.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,780.83 : 11,664.77 = 2,849.55 : x
  2. Step 2: Convert to fraction form
    7,780.83/11,664.77 = 2,849.55/x
  3. Step 3: Cross multiply
    7,780.83x = 11,664.77 × 2,849.55
  4. Step 4: Simplify right side
    7,780.83x = 33,239,331.11
  5. Step 5: Solve for x
    x = 33,239,331.11/7,780.83
  6. Step 6: Final answer
    x = 4,271.95

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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.