Home / 7,965.76-11,948.63-2,419.08

Finding the Fourth Proportional to 7,965.76, 11,948.63 and 2,419.08

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Solution

The fourth proportional to 7,965.76, 11,948.63 and 2,419.08 is: 3,628.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,965.76 : 11,948.63 = 2,419.08 : x
  2. Step 2: Convert to fraction form
    7,965.76/11,948.63 = 2,419.08/x
  3. Step 3: Cross multiply
    7,965.76x = 11,948.63 × 2,419.08
  4. Step 4: Simplify right side
    7,965.76x = 28,904,697.91
  5. Step 5: Solve for x
    x = 28,904,697.91/7,965.76
  6. Step 6: Final answer
    x = 3,628.62

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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.