Home / 5,148.15-7,104.45-2,790.28

Finding the Fourth Proportional to 5,148.15, 7,104.45 and 2,790.28

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Solution

The fourth proportional to 5,148.15, 7,104.45 and 2,790.28 is: 3,850.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,148.15 : 7,104.45 = 2,790.28 : x
  2. Step 2: Convert to fraction form
    5,148.15/7,104.45 = 2,790.28/x
  3. Step 3: Cross multiply
    5,148.15x = 7,104.45 × 2,790.28
  4. Step 4: Simplify right side
    5,148.15x = 19,823,404.75
  5. Step 5: Solve for x
    x = 19,823,404.75/5,148.15
  6. Step 6: Final answer
    x = 3,850.59

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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.