Home / 5,146.80-7,103.75-2,909.97

Finding the Fourth Proportional to 5,146.80, 7,103.75 and 2,909.97

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Solution

The fourth proportional to 5,146.80, 7,103.75 and 2,909.97 is: 4,016.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,146.80 : 7,103.75 = 2,909.97 : x
  2. Step 2: Convert to fraction form
    5,146.80/7,103.75 = 2,909.97/x
  3. Step 3: Cross multiply
    5,146.80x = 7,103.75 × 2,909.97
  4. Step 4: Simplify right side
    5,146.80x = 20,671,699.39
  5. Step 5: Solve for x
    x = 20,671,699.39/5,146.80
  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.