Home / 5,148.80-7,104.88-2,910.64

Finding the Fourth Proportional to 5,148.80, 7,104.88 and 2,910.64

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Solution

The fourth proportional to 5,148.80, 7,104.88 and 2,910.64 is: 4,016.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,148.80 : 7,104.88 = 2,910.64 : x
  2. Step 2: Convert to fraction form
    5,148.80/7,104.88 = 2,910.64/x
  3. Step 3: Cross multiply
    5,148.80x = 7,104.88 × 2,910.64
  4. Step 4: Simplify right side
    5,148.80x = 20,679,747.92
  5. Step 5: Solve for x
    x = 20,679,747.92/5,148.80
  6. Step 6: Final answer
    x = 4,016.42

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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.