Home / 5,118.76-7,675.58-1,655.08

Finding the Fourth Proportional to 5,118.76, 7,675.58 and 1,655.08

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Solution

The fourth proportional to 5,118.76, 7,675.58 and 1,655.08 is: 2,481.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,118.76 : 7,675.58 = 1,655.08 : x
  2. Step 2: Convert to fraction form
    5,118.76/7,675.58 = 1,655.08/x
  3. Step 3: Cross multiply
    5,118.76x = 7,675.58 × 1,655.08
  4. Step 4: Simplify right side
    5,118.76x = 12,703,698.95
  5. Step 5: Solve for x
    x = 12,703,698.95/5,118.76
  6. Step 6: Final answer
    x = 2,481.79

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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.