Home / 7,589.82-11,386.10-3,431.79

Finding the Fourth Proportional to 7,589.82, 11,386.10 and 3,431.79

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Solution

The fourth proportional to 7,589.82, 11,386.10 and 3,431.79 is: 5,148.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,589.82 : 11,386.10 = 3,431.79 : x
  2. Step 2: Convert to fraction form
    7,589.82/11,386.10 = 3,431.79/x
  3. Step 3: Cross multiply
    7,589.82x = 11,386.10 × 3,431.79
  4. Step 4: Simplify right side
    7,589.82x = 39,074,670.00
  5. Step 5: Solve for x
    x = 39,074,670.00/7,589.82
  6. Step 6: Final answer
    x = 5,148.30

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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.