Home / 5,423.67-8,135.79-1,528.38

Finding the Fourth Proportional to 5,423.67, 8,135.79 and 1,528.38

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Solution

The fourth proportional to 5,423.67, 8,135.79 and 1,528.38 is: 2,292.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,423.67 : 8,135.79 = 1,528.38 : x
  2. Step 2: Convert to fraction form
    5,423.67/8,135.79 = 1,528.38/x
  3. Step 3: Cross multiply
    5,423.67x = 8,135.79 × 1,528.38
  4. Step 4: Simplify right side
    5,423.67x = 12,434,578.72
  5. Step 5: Solve for x
    x = 12,434,578.72/5,423.67
  6. Step 6: Final answer
    x = 2,292.65

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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.