Home / 5,087.26-7,020.30-2,991.52

Finding the Fourth Proportional to 5,087.26, 7,020.30 and 2,991.52

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Solution

The fourth proportional to 5,087.26, 7,020.30 and 2,991.52 is: 4,128.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,087.26 : 7,020.30 = 2,991.52 : x
  2. Step 2: Convert to fraction form
    5,087.26/7,020.30 = 2,991.52/x
  3. Step 3: Cross multiply
    5,087.26x = 7,020.30 × 2,991.52
  4. Step 4: Simplify right side
    5,087.26x = 21,001,367.86
  5. Step 5: Solve for x
    x = 21,001,367.86/5,087.26
  6. Step 6: Final answer
    x = 4,128.23

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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.