Home / 7,578.68-11,368.05-2,648.34

Finding the Fourth Proportional to 7,578.68, 11,368.05 and 2,648.34

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Solution

The fourth proportional to 7,578.68, 11,368.05 and 2,648.34 is: 3,972.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,578.68 : 11,368.05 = 2,648.34 : x
  2. Step 2: Convert to fraction form
    7,578.68/11,368.05 = 2,648.34/x
  3. Step 3: Cross multiply
    7,578.68x = 11,368.05 × 2,648.34
  4. Step 4: Simplify right side
    7,578.68x = 30,106,451.61
  5. Step 5: Solve for x
    x = 30,106,451.61/7,578.68
  6. Step 6: Final answer
    x = 3,972.52

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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.