Home / 5,265.74-7,899.42-1,979.07

Finding the Fourth Proportional to 5,265.74, 7,899.42 and 1,979.07

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Solution

The fourth proportional to 5,265.74, 7,899.42 and 1,979.07 is: 2,968.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,265.74 : 7,899.42 = 1,979.07 : x
  2. Step 2: Convert to fraction form
    5,265.74/7,899.42 = 1,979.07/x
  3. Step 3: Cross multiply
    5,265.74x = 7,899.42 × 1,979.07
  4. Step 4: Simplify right side
    5,265.74x = 15,633,482.94
  5. Step 5: Solve for x
    x = 15,633,482.94/5,265.74
  6. Step 6: Final answer
    x = 2,968.90

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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.