Home / 5,617.21-8,426.89-2,154.19

Finding the Fourth Proportional to 5,617.21, 8,426.89 and 2,154.19

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Solution

The fourth proportional to 5,617.21, 8,426.89 and 2,154.19 is: 3,231.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,617.21 : 8,426.89 = 2,154.19 : x
  2. Step 2: Convert to fraction form
    5,617.21/8,426.89 = 2,154.19/x
  3. Step 3: Cross multiply
    5,617.21x = 8,426.89 × 2,154.19
  4. Step 4: Simplify right side
    5,617.21x = 18,153,103.79
  5. Step 5: Solve for x
    x = 18,153,103.79/5,617.21
  6. Step 6: Final answer
    x = 3,231.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.