Home / 6,315.74-8,716.12-3,521.24

Finding the Fourth Proportional to 6,315.74, 8,716.12 and 3,521.24

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Solution

The fourth proportional to 6,315.74, 8,716.12 and 3,521.24 is: 4,859.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,315.74 : 8,716.12 = 3,521.24 : x
  2. Step 2: Convert to fraction form
    6,315.74/8,716.12 = 3,521.24/x
  3. Step 3: Cross multiply
    6,315.74x = 8,716.12 × 3,521.24
  4. Step 4: Simplify right side
    6,315.74x = 30,691,550.39
  5. Step 5: Solve for x
    x = 30,691,550.39/6,315.74
  6. Step 6: Final answer
    x = 4,859.53

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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.