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Finding the Fourth Proportional to 3,101.06, 4,650.68 and 909.27

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Solution

The fourth proportional to 3,101.06, 4,650.68 and 909.27 is: 1,363.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,101.06 : 4,650.68 = 909.27 : x
  2. Step 2: Convert to fraction form
    3,101.06/4,650.68 = 909.27/x
  3. Step 3: Cross multiply
    3,101.06x = 4,650.68 × 909.27
  4. Step 4: Simplify right side
    3,101.06x = 4,228,726.08
  5. Step 5: Solve for x
    x = 4,228,726.08/3,101.06
  6. Step 6: Final answer
    x = 1,363.64

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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.