Home / 5,205.16-7,186.58-3,081.37

Finding the Fourth Proportional to 5,205.16, 7,186.58 and 3,081.37

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Solution

The fourth proportional to 5,205.16, 7,186.58 and 3,081.37 is: 4,254.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,205.16 : 7,186.58 = 3,081.37 : x
  2. Step 2: Convert to fraction form
    5,205.16/7,186.58 = 3,081.37/x
  3. Step 3: Cross multiply
    5,205.16x = 7,186.58 × 3,081.37
  4. Step 4: Simplify right side
    5,205.16x = 22,144,513.94
  5. Step 5: Solve for x
    x = 22,144,513.94/5,205.16
  6. Step 6: Final answer
    x = 4,254.34

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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.