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Finding the Fourth Proportional to 6,605.08, 9,900.19 and 2,655.41

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Solution

The fourth proportional to 6,605.08, 9,900.19 and 2,655.41 is: 3,980.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,605.08 : 9,900.19 = 2,655.41 : x
  2. Step 2: Convert to fraction form
    6,605.08/9,900.19 = 2,655.41/x
  3. Step 3: Cross multiply
    6,605.08x = 9,900.19 × 2,655.41
  4. Step 4: Simplify right side
    6,605.08x = 26,289,073.71
  5. Step 5: Solve for x
    x = 26,289,073.71/6,605.08
  6. Step 6: Final answer
    x = 3,980.13

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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.