Home / 6,113.24-8,431.86-3,756.68

Finding the Fourth Proportional to 6,113.24, 8,431.86 and 3,756.68

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Solution

The fourth proportional to 6,113.24, 8,431.86 and 3,756.68 is: 5,181.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,113.24 : 8,431.86 = 3,756.68 : x
  2. Step 2: Convert to fraction form
    6,113.24/8,431.86 = 3,756.68/x
  3. Step 3: Cross multiply
    6,113.24x = 8,431.86 × 3,756.68
  4. Step 4: Simplify right side
    6,113.24x = 31,675,799.82
  5. Step 5: Solve for x
    x = 31,675,799.82/6,113.24
  6. Step 6: Final answer
    x = 5,181.51

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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.