Home / 5,105.29-7,657.84-2,909.34

Finding the Fourth Proportional to 5,105.29, 7,657.84 and 2,909.34

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Solution

The fourth proportional to 5,105.29, 7,657.84 and 2,909.34 is: 4,363.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,105.29 : 7,657.84 = 2,909.34 : x
  2. Step 2: Convert to fraction form
    5,105.29/7,657.84 = 2,909.34/x
  3. Step 3: Cross multiply
    5,105.29x = 7,657.84 × 2,909.34
  4. Step 4: Simplify right side
    5,105.29x = 22,279,260.23
  5. Step 5: Solve for x
    x = 22,279,260.23/5,105.29
  6. Step 6: Final answer
    x = 4,363.96

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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.