Home / 3,550.34-5,325.47-917.61

Finding the Fourth Proportional to 3,550.34, 5,325.47 and 917.61

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Solution

The fourth proportional to 3,550.34, 5,325.47 and 917.61 is: 1,376.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,550.34 : 5,325.47 = 917.61 : x
  2. Step 2: Convert to fraction form
    3,550.34/5,325.47 = 917.61/x
  3. Step 3: Cross multiply
    3,550.34x = 5,325.47 × 917.61
  4. Step 4: Simplify right side
    3,550.34x = 4,886,699.94
  5. Step 5: Solve for x
    x = 4,886,699.94/3,550.34
  6. Step 6: Final answer
    x = 1,376.41

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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.