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Finding the Fourth Proportional to 7,973.30, 11,960.04 and 2,779.22

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Solution

The fourth proportional to 7,973.30, 11,960.04 and 2,779.22 is: 4,168.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,973.30 : 11,960.04 = 2,779.22 : x
  2. Step 2: Convert to fraction form
    7,973.30/11,960.04 = 2,779.22/x
  3. Step 3: Cross multiply
    7,973.30x = 11,960.04 × 2,779.22
  4. Step 4: Simplify right side
    7,973.30x = 33,239,582.37
  5. Step 5: Solve for x
    x = 33,239,582.37/7,973.30
  6. Step 6: Final answer
    x = 4,168.86

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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.