Home / 5,015.90-7,521.09-3,982.53

Finding the Fourth Proportional to 5,015.90, 7,521.09 and 3,982.53

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Solution

The fourth proportional to 5,015.90, 7,521.09 and 3,982.53 is: 5,971.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,015.90 : 7,521.09 = 3,982.53 : x
  2. Step 2: Convert to fraction form
    5,015.90/7,521.09 = 3,982.53/x
  3. Step 3: Cross multiply
    5,015.90x = 7,521.09 × 3,982.53
  4. Step 4: Simplify right side
    5,015.90x = 29,952,966.56
  5. Step 5: Solve for x
    x = 29,952,966.56/5,015.90
  6. Step 6: Final answer
    x = 5,971.61

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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.