Home / 5,148.91-7,105.30-2,910.70

Finding the Fourth Proportional to 5,148.91, 7,105.30 and 2,910.70

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Solution

The fourth proportional to 5,148.91, 7,105.30 and 2,910.70 is: 4,016.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,148.91 : 7,105.30 = 2,910.70 : x
  2. Step 2: Convert to fraction form
    5,148.91/7,105.30 = 2,910.70/x
  3. Step 3: Cross multiply
    5,148.91x = 7,105.30 × 2,910.70
  4. Step 4: Simplify right side
    5,148.91x = 20,681,396.71
  5. Step 5: Solve for x
    x = 20,681,396.71/5,148.91
  6. Step 6: Final answer
    x = 4,016.66

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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.