Home / 7,780.07-11,662.52-3,098.68

Finding the Fourth Proportional to 7,780.07, 11,662.52 and 3,098.68

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Solution

The fourth proportional to 7,780.07, 11,662.52 and 3,098.68 is: 4,644.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,780.07 : 11,662.52 = 3,098.68 : x
  2. Step 2: Convert to fraction form
    7,780.07/11,662.52 = 3,098.68/x
  3. Step 3: Cross multiply
    7,780.07x = 11,662.52 × 3,098.68
  4. Step 4: Simplify right side
    7,780.07x = 36,138,372.82
  5. Step 5: Solve for x
    x = 36,138,372.82/7,780.07
  6. Step 6: Final answer
    x = 4,644.99

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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.