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Finding the Fourth Proportional to 6,602.65, 9,900.67 and 2,159.73

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Solution

The fourth proportional to 6,602.65, 9,900.67 and 2,159.73 is: 3,238.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,602.65 : 9,900.67 = 2,159.73 : x
  2. Step 2: Convert to fraction form
    6,602.65/9,900.67 = 2,159.73/x
  3. Step 3: Cross multiply
    6,602.65x = 9,900.67 × 2,159.73
  4. Step 4: Simplify right side
    6,602.65x = 21,382,774.02
  5. Step 5: Solve for x
    x = 21,382,774.02/6,602.65
  6. Step 6: Final answer
    x = 3,238.52

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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.