Home / 2,987.44-4,476.80-1,889.04

Finding the Fourth Proportional to 2,987.44, 4,476.80 and 1,889.04

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Solution

The fourth proportional to 2,987.44, 4,476.80 and 1,889.04 is: 2,830.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,987.44 : 4,476.80 = 1,889.04 : x
  2. Step 2: Convert to fraction form
    2,987.44/4,476.80 = 1,889.04/x
  3. Step 3: Cross multiply
    2,987.44x = 4,476.80 × 1,889.04
  4. Step 4: Simplify right side
    2,987.44x = 8,456,854.27
  5. Step 5: Solve for x
    x = 8,456,854.27/2,987.44
  6. Step 6: Final answer
    x = 2,830.80

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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.