Home / 3,442.23-5,163.30-845.19

Finding the Fourth Proportional to 3,442.23, 5,163.30 and 845.19

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Solution

The fourth proportional to 3,442.23, 5,163.30 and 845.19 is: 1,267.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,442.23 : 5,163.30 = 845.19 : x
  2. Step 2: Convert to fraction form
    3,442.23/5,163.30 = 845.19/x
  3. Step 3: Cross multiply
    3,442.23x = 5,163.30 × 845.19
  4. Step 4: Simplify right side
    3,442.23x = 4,363,969.53
  5. Step 5: Solve for x
    x = 4,363,969.53/3,442.23
  6. Step 6: Final answer
    x = 1,267.77

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1.5x scale

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.