Home / 2,991.13-4,480.31-1,877.58

Finding the Fourth Proportional to 2,991.13, 4,480.31 and 1,877.58

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Solution

The fourth proportional to 2,991.13, 4,480.31 and 1,877.58 is: 2,812.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,991.13 : 4,480.31 = 1,877.58 : x
  2. Step 2: Convert to fraction form
    2,991.13/4,480.31 = 1,877.58/x
  3. Step 3: Cross multiply
    2,991.13x = 4,480.31 × 1,877.58
  4. Step 4: Simplify right side
    2,991.13x = 8,412,145.14
  5. Step 5: Solve for x
    x = 8,412,145.14/2,991.13
  6. Step 6: Final answer
    x = 2,812.37

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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.