Home / 5,125.90-7,072.79-3,001.32

Finding the Fourth Proportional to 5,125.90, 7,072.79 and 3,001.32

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Solution

The fourth proportional to 5,125.90, 7,072.79 and 3,001.32 is: 4,141.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,125.90 : 7,072.79 = 3,001.32 : x
  2. Step 2: Convert to fraction form
    5,125.90/7,072.79 = 3,001.32/x
  3. Step 3: Cross multiply
    5,125.90x = 7,072.79 × 3,001.32
  4. Step 4: Simplify right side
    5,125.90x = 21,227,716.40
  5. Step 5: Solve for x
    x = 21,227,716.40/5,125.90
  6. Step 6: Final answer
    x = 4,141.27

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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.