Home / 4,759.51-7,139.13-2,129.44

Finding the Fourth Proportional to 4,759.51, 7,139.13 and 2,129.44

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Solution

The fourth proportional to 4,759.51, 7,139.13 and 2,129.44 is: 3,194.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,759.51 : 7,139.13 = 2,129.44 : x
  2. Step 2: Convert to fraction form
    4,759.51/7,139.13 = 2,129.44/x
  3. Step 3: Cross multiply
    4,759.51x = 7,139.13 × 2,129.44
  4. Step 4: Simplify right side
    4,759.51x = 15,202,348.99
  5. Step 5: Solve for x
    x = 15,202,348.99/4,759.51
  6. Step 6: Final answer
    x = 3,194.10

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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.