Home / 8,071.88-12,108.02-2,877.75

Finding the Fourth Proportional to 8,071.88, 12,108.02 and 2,877.75

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Solution

The fourth proportional to 8,071.88, 12,108.02 and 2,877.75 is: 4,316.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,071.88 : 12,108.02 = 2,877.75 : x
  2. Step 2: Convert to fraction form
    8,071.88/12,108.02 = 2,877.75/x
  3. Step 3: Cross multiply
    8,071.88x = 12,108.02 × 2,877.75
  4. Step 4: Simplify right side
    8,071.88x = 34,843,840.17
  5. Step 5: Solve for x
    x = 34,843,840.17/8,071.88
  6. Step 6: Final answer
    x = 4,316.70

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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.