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Finding the Fourth Proportional to 3,950.34, 5,916.54 and 2,785.56

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Solution

The fourth proportional to 3,950.34, 5,916.54 and 2,785.56 is: 4,172.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,950.34 : 5,916.54 = 2,785.56 : x
  2. Step 2: Convert to fraction form
    3,950.34/5,916.54 = 2,785.56/x
  3. Step 3: Cross multiply
    3,950.34x = 5,916.54 × 2,785.56
  4. Step 4: Simplify right side
    3,950.34x = 16,480,877.16
  5. Step 5: Solve for x
    x = 16,480,877.16/3,950.34
  6. Step 6: Final answer
    x = 4,172.01

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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.