Home / 5,423.12-8,134.91-2,646.48

Finding the Fourth Proportional to 5,423.12, 8,134.91 and 2,646.48

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Solution

The fourth proportional to 5,423.12, 8,134.91 and 2,646.48 is: 3,969.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,423.12 : 8,134.91 = 2,646.48 : x
  2. Step 2: Convert to fraction form
    5,423.12/8,134.91 = 2,646.48/x
  3. Step 3: Cross multiply
    5,423.12x = 8,134.91 × 2,646.48
  4. Step 4: Simplify right side
    5,423.12x = 21,528,863.38
  5. Step 5: Solve for x
    x = 21,528,863.38/5,423.12
  6. Step 6: Final answer
    x = 3,969.83

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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.