Home / 7,422.35-10,243.09-4,065.31

Finding the Fourth Proportional to 7,422.35, 10,243.09 and 4,065.31

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Solution

The fourth proportional to 7,422.35, 10,243.09 and 4,065.31 is: 5,610.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,422.35 : 10,243.09 = 4,065.31 : x
  2. Step 2: Convert to fraction form
    7,422.35/10,243.09 = 4,065.31/x
  3. Step 3: Cross multiply
    7,422.35x = 10,243.09 × 4,065.31
  4. Step 4: Simplify right side
    7,422.35x = 41,641,336.21
  5. Step 5: Solve for x
    x = 41,641,336.21/7,422.35
  6. Step 6: Final answer
    x = 5,610.26

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.