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Finding the Fourth Proportional to 3,157.33, 4,737.06 and 1,985.95

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Solution

The fourth proportional to 3,157.33, 4,737.06 and 1,985.95 is: 2,979.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,157.33 : 4,737.06 = 1,985.95 : x
  2. Step 2: Convert to fraction form
    3,157.33/4,737.06 = 1,985.95/x
  3. Step 3: Cross multiply
    3,157.33x = 4,737.06 × 1,985.95
  4. Step 4: Simplify right side
    3,157.33x = 9,407,554.38
  5. Step 5: Solve for x
    x = 9,407,554.38/3,157.33
  6. Step 6: Final answer
    x = 2,979.59

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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.