Home / 2,877.23-3,971.91-2,038.61

Finding the Fourth Proportional to 2,877.23, 3,971.91 and 2,038.61

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Solution

The fourth proportional to 2,877.23, 3,971.91 and 2,038.61 is: 2,814.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,877.23 : 3,971.91 = 2,038.61 : x
  2. Step 2: Convert to fraction form
    2,877.23/3,971.91 = 2,038.61/x
  3. Step 3: Cross multiply
    2,877.23x = 3,971.91 × 2,038.61
  4. Step 4: Simplify right side
    2,877.23x = 8,097,175.45
  5. Step 5: Solve for x
    x = 8,097,175.45/2,877.23
  6. Step 6: Final answer
    x = 2,814.23

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.