Home / 5,139.09-7,708.36-1,441.57

Finding the Fourth Proportional to 5,139.09, 7,708.36 and 1,441.57

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Solution

The fourth proportional to 5,139.09, 7,708.36 and 1,441.57 is: 2,162.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,139.09 : 7,708.36 = 1,441.57 : x
  2. Step 2: Convert to fraction form
    5,139.09/7,708.36 = 1,441.57/x
  3. Step 3: Cross multiply
    5,139.09x = 7,708.36 × 1,441.57
  4. Step 4: Simplify right side
    5,139.09x = 11,112,136.92
  5. Step 5: Solve for x
    x = 11,112,136.92/5,139.09
  6. Step 6: Final answer
    x = 2,162.28

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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.