Home / 5,135.33-7,087.60-3,146.99

Finding the Fourth Proportional to 5,135.33, 7,087.60 and 3,146.99

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Solution

The fourth proportional to 5,135.33, 7,087.60 and 3,146.99 is: 4,343.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,135.33 : 7,087.60 = 3,146.99 : x
  2. Step 2: Convert to fraction form
    5,135.33/7,087.60 = 3,146.99/x
  3. Step 3: Cross multiply
    5,135.33x = 7,087.60 × 3,146.99
  4. Step 4: Simplify right side
    5,135.33x = 22,304,574.82
  5. Step 5: Solve for x
    x = 22,304,574.82/5,135.33
  6. Step 6: Final answer
    x = 4,343.36

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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.