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Finding the Fourth Proportional to 3,445.12, 5,163.90 and 1,495

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Solution

The fourth proportional to 3,445.12, 5,163.90 and 1,495 is: 2,240.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,445.12 : 5,163.90 = 1,495 : x
  2. Step 2: Convert to fraction form
    3,445.12/5,163.90 = 1,495/x
  3. Step 3: Cross multiply
    3,445.12x = 5,163.90 × 1,495
  4. Step 4: Simplify right side
    3,445.12x = 7,720,030.50
  5. Step 5: Solve for x
    x = 7,720,030.50/3,445.12
  6. Step 6: Final answer
    x = 2,240.86

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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.