Home / 7,578.96-11,355.67-2,646.06

Finding the Fourth Proportional to 7,578.96, 11,355.67 and 2,646.06

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Solution

The fourth proportional to 7,578.96, 11,355.67 and 2,646.06 is: 3,964.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,578.96 : 11,355.67 = 2,646.06 : x
  2. Step 2: Convert to fraction form
    7,578.96/11,355.67 = 2,646.06/x
  3. Step 3: Cross multiply
    7,578.96x = 11,355.67 × 2,646.06
  4. Step 4: Simplify right side
    7,578.96x = 30,047,784.16
  5. Step 5: Solve for x
    x = 30,047,784.16/7,578.96
  6. Step 6: Final answer
    x = 3,964.63

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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.