Home / 4,750.25-7,121.54-1,979.01

Finding the Fourth Proportional to 4,750.25, 7,121.54 and 1,979.01

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Solution

The fourth proportional to 4,750.25, 7,121.54 and 1,979.01 is: 2,966.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,750.25 : 7,121.54 = 1,979.01 : x
  2. Step 2: Convert to fraction form
    4,750.25/7,121.54 = 1,979.01/x
  3. Step 3: Cross multiply
    4,750.25x = 7,121.54 × 1,979.01
  4. Step 4: Simplify right side
    4,750.25x = 14,093,588.98
  5. Step 5: Solve for x
    x = 14,093,588.98/4,750.25
  6. Step 6: Final answer
    x = 2,966.92

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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.