Home / 7,438.23-11,160.38-3,278.07

Finding the Fourth Proportional to 7,438.23, 11,160.38 and 3,278.07

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Solution

The fourth proportional to 7,438.23, 11,160.38 and 3,278.07 is: 4,918.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,438.23 : 11,160.38 = 3,278.07 : x
  2. Step 2: Convert to fraction form
    7,438.23/11,160.38 = 3,278.07/x
  3. Step 3: Cross multiply
    7,438.23x = 11,160.38 × 3,278.07
  4. Step 4: Simplify right side
    7,438.23x = 36,584,515.06
  5. Step 5: Solve for x
    x = 36,584,515.06/7,438.23
  6. Step 6: Final answer
    x = 4,918.44

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1.5x scale

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.