Home / 3,902.02-5,855.34-1,438.57

Finding the Fourth Proportional to 3,902.02, 5,855.34 and 1,438.57

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Solution

The fourth proportional to 3,902.02, 5,855.34 and 1,438.57 is: 2,158.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,902.02 : 5,855.34 = 1,438.57 : x
  2. Step 2: Convert to fraction form
    3,902.02/5,855.34 = 1,438.57/x
  3. Step 3: Cross multiply
    3,902.02x = 5,855.34 × 1,438.57
  4. Step 4: Simplify right side
    3,902.02x = 8,423,316.46
  5. Step 5: Solve for x
    x = 8,423,316.46/3,902.02
  6. Step 6: Final answer
    x = 2,158.71

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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.