Home / 7,135.24-10,705.39-3,186.14

Finding the Fourth Proportional to 7,135.24, 10,705.39 and 3,186.14

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Solution

The fourth proportional to 7,135.24, 10,705.39 and 3,186.14 is: 4,780.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,135.24 : 10,705.39 = 3,186.14 : x
  2. Step 2: Convert to fraction form
    7,135.24/10,705.39 = 3,186.14/x
  3. Step 3: Cross multiply
    7,135.24x = 10,705.39 × 3,186.14
  4. Step 4: Simplify right side
    7,135.24x = 34,108,871.29
  5. Step 5: Solve for x
    x = 34,108,871.29/7,135.24
  6. Step 6: Final answer
    x = 4,780.34

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.