Home / 6,780.31-10,162.65-2,618.48

Finding the Fourth Proportional to 6,780.31, 10,162.65 and 2,618.48

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Solution

The fourth proportional to 6,780.31, 10,162.65 and 2,618.48 is: 3,924.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,780.31 : 10,162.65 = 2,618.48 : x
  2. Step 2: Convert to fraction form
    6,780.31/10,162.65 = 2,618.48/x
  3. Step 3: Cross multiply
    6,780.31x = 10,162.65 × 2,618.48
  4. Step 4: Simplify right side
    6,780.31x = 26,610,695.77
  5. Step 5: Solve for x
    x = 26,610,695.77/6,780.31
  6. Step 6: Final answer
    x = 3,924.70

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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.