Home / 7,570.90-11,357.88-2,639.22

Finding the Fourth Proportional to 7,570.90, 11,357.88 and 2,639.22

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Solution

The fourth proportional to 7,570.90, 11,357.88 and 2,639.22 is: 3,959.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,570.90 : 11,357.88 = 2,639.22 : x
  2. Step 2: Convert to fraction form
    7,570.90/11,357.88 = 2,639.22/x
  3. Step 3: Cross multiply
    7,570.90x = 11,357.88 × 2,639.22
  4. Step 4: Simplify right side
    7,570.90x = 29,975,944.05
  5. Step 5: Solve for x
    x = 29,975,944.05/7,570.90
  6. Step 6: Final answer
    x = 3,959.36

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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.