Home / 5,240.63-7,232.07-3,145.43

Finding the Fourth Proportional to 5,240.63, 7,232.07 and 3,145.43

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Solution

The fourth proportional to 5,240.63, 7,232.07 and 3,145.43 is: 4,340.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,240.63 : 7,232.07 = 3,145.43 : x
  2. Step 2: Convert to fraction form
    5,240.63/7,232.07 = 3,145.43/x
  3. Step 3: Cross multiply
    5,240.63x = 7,232.07 × 3,145.43
  4. Step 4: Simplify right side
    5,240.63x = 22,747,933.78
  5. Step 5: Solve for x
    x = 22,747,933.78/5,240.63
  6. Step 6: Final answer
    x = 4,340.69

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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.