Home / 6,618.45-9,929.15-2,235.81

Finding the Fourth Proportional to 6,618.45, 9,929.15 and 2,235.81

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Solution

The fourth proportional to 6,618.45, 9,929.15 and 2,235.81 is: 3,354.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,618.45 : 9,929.15 = 2,235.81 : x
  2. Step 2: Convert to fraction form
    6,618.45/9,929.15 = 2,235.81/x
  3. Step 3: Cross multiply
    6,618.45x = 9,929.15 × 2,235.81
  4. Step 4: Simplify right side
    6,618.45x = 22,199,681.68
  5. Step 5: Solve for x
    x = 22,199,681.68/6,618.45
  6. Step 6: Final answer
    x = 3,354.21

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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.