Home / 5,148.12-7,104.45-2,790.27

Finding the Fourth Proportional to 5,148.12, 7,104.45 and 2,790.27

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Solution

The fourth proportional to 5,148.12, 7,104.45 and 2,790.27 is: 3,850.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,148.12 : 7,104.45 = 2,790.27 : x
  2. Step 2: Convert to fraction form
    5,148.12/7,104.45 = 2,790.27/x
  3. Step 3: Cross multiply
    5,148.12x = 7,104.45 × 2,790.27
  4. Step 4: Simplify right side
    5,148.12x = 19,823,333.70
  5. Step 5: Solve for x
    x = 19,823,333.70/5,148.12
  6. Step 6: Final answer
    x = 3,850.60

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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.