Home / 5,148.70-7,105.32-2,910.70

Finding the Fourth Proportional to 5,148.70, 7,105.32 and 2,910.70

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Solution

The fourth proportional to 5,148.70, 7,105.32 and 2,910.70 is: 4,016.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,148.70 : 7,105.32 = 2,910.70 : x
  2. Step 2: Convert to fraction form
    5,148.70/7,105.32 = 2,910.70/x
  3. Step 3: Cross multiply
    5,148.70x = 7,105.32 × 2,910.70
  4. Step 4: Simplify right side
    5,148.70x = 20,681,478.79
  5. Step 5: Solve for x
    x = 20,681,478.79/5,148.70
  6. Step 6: Final answer
    x = 4,016.84

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.