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Finding the Fourth Proportional to 6,611.33, 9,916.97 and 1,681.04

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Solution

The fourth proportional to 6,611.33, 9,916.97 and 1,681.04 is: 2,521.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,611.33 : 9,916.97 = 1,681.04 : x
  2. Step 2: Convert to fraction form
    6,611.33/9,916.97 = 1,681.04/x
  3. Step 3: Cross multiply
    6,611.33x = 9,916.97 × 1,681.04
  4. Step 4: Simplify right side
    6,611.33x = 16,670,765.26
  5. Step 5: Solve for x
    x = 16,670,765.26/6,611.33
  6. Step 6: Final answer
    x = 2,521.55

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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.