Home / 7,779.24-11,670.06-2,847.78

Finding the Fourth Proportional to 7,779.24, 11,670.06 and 2,847.78

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Solution

The fourth proportional to 7,779.24, 11,670.06 and 2,847.78 is: 4,272.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,779.24 : 11,670.06 = 2,847.78 : x
  2. Step 2: Convert to fraction form
    7,779.24/11,670.06 = 2,847.78/x
  3. Step 3: Cross multiply
    7,779.24x = 11,670.06 × 2,847.78
  4. Step 4: Simplify right side
    7,779.24x = 33,233,763.47
  5. Step 5: Solve for x
    x = 33,233,763.47/7,779.24
  6. Step 6: Final answer
    x = 4,272.11

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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.