Home / 5,617.68-8,421.36-2,154.24

Finding the Fourth Proportional to 5,617.68, 8,421.36 and 2,154.24

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Solution

The fourth proportional to 5,617.68, 8,421.36 and 2,154.24 is: 3,229.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,617.68 : 8,421.36 = 2,154.24 : x
  2. Step 2: Convert to fraction form
    5,617.68/8,421.36 = 2,154.24/x
  3. Step 3: Cross multiply
    5,617.68x = 8,421.36 × 2,154.24
  4. Step 4: Simplify right side
    5,617.68x = 18,141,630.57
  5. Step 5: Solve for x
    x = 18,141,630.57/5,617.68
  6. Step 6: Final answer
    x = 3,229.38

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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.