Home / 7,780.44-11,670.66-2,850.47

Finding the Fourth Proportional to 7,780.44, 11,670.66 and 2,850.47

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Solution

The fourth proportional to 7,780.44, 11,670.66 and 2,850.47 is: 4,275.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,780.44 : 11,670.66 = 2,850.47 : x
  2. Step 2: Convert to fraction form
    7,780.44/11,670.66 = 2,850.47/x
  3. Step 3: Cross multiply
    7,780.44x = 11,670.66 × 2,850.47
  4. Step 4: Simplify right side
    7,780.44x = 33,266,810.78
  5. Step 5: Solve for x
    x = 33,266,810.78/7,780.44
  6. Step 6: Final answer
    x = 4,275.70

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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.