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Finding the Fourth Proportional to 3,847.58, 5,771.01 and 1,655.90

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Solution

The fourth proportional to 3,847.58, 5,771.01 and 1,655.90 is: 2,483.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,847.58 : 5,771.01 = 1,655.90 : x
  2. Step 2: Convert to fraction form
    3,847.58/5,771.01 = 1,655.90/x
  3. Step 3: Cross multiply
    3,847.58x = 5,771.01 × 1,655.90
  4. Step 4: Simplify right side
    3,847.58x = 9,556,215.46
  5. Step 5: Solve for x
    x = 9,556,215.46/3,847.58
  6. Step 6: Final answer
    x = 2,483.70

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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.