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Finding the Fourth Proportional to 4,649.88, 6,972.16 and 1,877.88

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Solution

The fourth proportional to 4,649.88, 6,972.16 and 1,877.88 is: 2,815.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,649.88 : 6,972.16 = 1,877.88 : x
  2. Step 2: Convert to fraction form
    4,649.88/6,972.16 = 1,877.88/x
  3. Step 3: Cross multiply
    4,649.88x = 6,972.16 × 1,877.88
  4. Step 4: Simplify right side
    4,649.88x = 13,092,879.82
  5. Step 5: Solve for x
    x = 13,092,879.82/4,649.88
  6. Step 6: Final answer
    x = 2,815.75

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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.