Home / 7,485.29-11,227.08-1,938.65

Finding the Fourth Proportional to 7,485.29, 11,227.08 and 1,938.65

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Solution

The fourth proportional to 7,485.29, 11,227.08 and 1,938.65 is: 2,907.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,485.29 : 11,227.08 = 1,938.65 : x
  2. Step 2: Convert to fraction form
    7,485.29/11,227.08 = 1,938.65/x
  3. Step 3: Cross multiply
    7,485.29x = 11,227.08 × 1,938.65
  4. Step 4: Simplify right side
    7,485.29x = 21,765,378.64
  5. Step 5: Solve for x
    x = 21,765,378.64/7,485.29
  6. Step 6: Final answer
    x = 2,907.75

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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.