Home / 6,617.28-9,130.68-4,229.40

Finding the Fourth Proportional to 6,617.28, 9,130.68 and 4,229.40

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Solution

The fourth proportional to 6,617.28, 9,130.68 and 4,229.40 is: 5,835.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,617.28 : 9,130.68 = 4,229.40 : x
  2. Step 2: Convert to fraction form
    6,617.28/9,130.68 = 4,229.40/x
  3. Step 3: Cross multiply
    6,617.28x = 9,130.68 × 4,229.40
  4. Step 4: Simplify right side
    6,617.28x = 38,617,297.99
  5. Step 5: Solve for x
    x = 38,617,297.99/6,617.28
  6. Step 6: Final answer
    x = 5,835.83

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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.