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Finding the Fourth Proportional to 7,803.91, 11,710.49 and 2,877.01

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Solution

The fourth proportional to 7,803.91, 11,710.49 and 2,877.01 is: 4,317.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,803.91 : 11,710.49 = 2,877.01 : x
  2. Step 2: Convert to fraction form
    7,803.91/11,710.49 = 2,877.01/x
  3. Step 3: Cross multiply
    7,803.91x = 11,710.49 × 2,877.01
  4. Step 4: Simplify right side
    7,803.91x = 33,691,196.83
  5. Step 5: Solve for x
    x = 33,691,196.83/7,803.91
  6. Step 6: Final answer
    x = 4,317.22

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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.