Home / 4,815.72-6,645.98-2,691.36

Finding the Fourth Proportional to 4,815.72, 6,645.98 and 2,691.36

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Solution

The fourth proportional to 4,815.72, 6,645.98 and 2,691.36 is: 3,714.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,815.72 : 6,645.98 = 2,691.36 : x
  2. Step 2: Convert to fraction form
    4,815.72/6,645.98 = 2,691.36/x
  3. Step 3: Cross multiply
    4,815.72x = 6,645.98 × 2,691.36
  4. Step 4: Simplify right side
    4,815.72x = 17,886,731.46
  5. Step 5: Solve for x
    x = 17,886,731.46/4,815.72
  6. Step 6: Final answer
    x = 3,714.24

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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.