Home / 6,108.18-8,429.28-3,313.68

Finding the Fourth Proportional to 6,108.18, 8,429.28 and 3,313.68

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Solution

The fourth proportional to 6,108.18, 8,429.28 and 3,313.68 is: 4,572.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,108.18 : 8,429.28 = 3,313.68 : x
  2. Step 2: Convert to fraction form
    6,108.18/8,429.28 = 3,313.68/x
  3. Step 3: Cross multiply
    6,108.18x = 8,429.28 × 3,313.68
  4. Step 4: Simplify right side
    6,108.18x = 27,931,936.55
  5. Step 5: Solve for x
    x = 27,931,936.55/6,108.18
  6. Step 6: Final answer
    x = 4,572.87

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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.