Home / 3,108.48-4,662.77-917.43

Finding the Fourth Proportional to 3,108.48, 4,662.77 and 917.43

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Solution

The fourth proportional to 3,108.48, 4,662.77 and 917.43 is: 1,376.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,108.48 : 4,662.77 = 917.43 : x
  2. Step 2: Convert to fraction form
    3,108.48/4,662.77 = 917.43/x
  3. Step 3: Cross multiply
    3,108.48x = 4,662.77 × 917.43
  4. Step 4: Simplify right side
    3,108.48x = 4,277,743.01
  5. Step 5: Solve for x
    x = 4,277,743.01/3,108.48
  6. Step 6: Final answer
    x = 1,376.15

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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.