Home / 6,612.30-9,918.41-1,681.88

Finding the Fourth Proportional to 6,612.30, 9,918.41 and 1,681.88

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Solution

The fourth proportional to 6,612.30, 9,918.41 and 1,681.88 is: 2,522.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,612.30 : 9,918.41 = 1,681.88 : x
  2. Step 2: Convert to fraction form
    6,612.30/9,918.41 = 1,681.88/x
  3. Step 3: Cross multiply
    6,612.30x = 9,918.41 × 1,681.88
  4. Step 4: Simplify right side
    6,612.30x = 16,681,517.41
  5. Step 5: Solve for x
    x = 16,681,517.41/6,612.30
  6. Step 6: Final answer
    x = 2,522.80

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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.