Home / 5,307.43-7,322.21-3,418.86

Finding the Fourth Proportional to 5,307.43, 7,322.21 and 3,418.86

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Solution

The fourth proportional to 5,307.43, 7,322.21 and 3,418.86 is: 4,716.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,307.43 : 7,322.21 = 3,418.86 : x
  2. Step 2: Convert to fraction form
    5,307.43/7,322.21 = 3,418.86/x
  3. Step 3: Cross multiply
    5,307.43x = 7,322.21 × 3,418.86
  4. Step 4: Simplify right side
    5,307.43x = 25,033,634.07
  5. Step 5: Solve for x
    x = 25,033,634.07/5,307.43
  6. Step 6: Final answer
    x = 4,716.72

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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.