Home / 7,980.48-11,961-3,596.76

Finding the Fourth Proportional to 7,980.48, 11,961 and 3,596.76

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Solution

The fourth proportional to 7,980.48, 11,961 and 3,596.76 is: 5,390.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,980.48 : 11,961 = 3,596.76 : x
  2. Step 2: Convert to fraction form
    7,980.48/11,961 = 3,596.76/x
  3. Step 3: Cross multiply
    7,980.48x = 11,961 × 3,596.76
  4. Step 4: Simplify right side
    7,980.48x = 43,020,846.36
  5. Step 5: Solve for x
    x = 43,020,846.36/7,980.48
  6. Step 6: Final answer
    x = 5,390.76

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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.