Home / 5,135.33-7,086.36-3,145.62

Finding the Fourth Proportional to 5,135.33, 7,086.36 and 3,145.62

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Solution

The fourth proportional to 5,135.33, 7,086.36 and 3,145.62 is: 4,340.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,135.33 : 7,086.36 = 3,145.62 : x
  2. Step 2: Convert to fraction form
    5,135.33/7,086.36 = 3,145.62/x
  3. Step 3: Cross multiply
    5,135.33x = 7,086.36 × 3,145.62
  4. Step 4: Simplify right side
    5,135.33x = 22,290,995.74
  5. Step 5: Solve for x
    x = 22,290,995.74/5,135.33
  6. Step 6: Final answer
    x = 4,340.72

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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.