Home / 2,987.18-4,484.87-1,896.41

Finding the Fourth Proportional to 2,987.18, 4,484.87 and 1,896.41

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Solution

The fourth proportional to 2,987.18, 4,484.87 and 1,896.41 is: 2,847.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,987.18 : 4,484.87 = 1,896.41 : x
  2. Step 2: Convert to fraction form
    2,987.18/4,484.87 = 1,896.41/x
  3. Step 3: Cross multiply
    2,987.18x = 4,484.87 × 1,896.41
  4. Step 4: Simplify right side
    2,987.18x = 8,505,161.16
  5. Step 5: Solve for x
    x = 8,505,161.16/2,987.18
  6. Step 6: Final answer
    x = 2,847.22

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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.