Home / 5,465.50-7,542.39-3,107.80

Finding the Fourth Proportional to 5,465.50, 7,542.39 and 3,107.80

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Solution

The fourth proportional to 5,465.50, 7,542.39 and 3,107.80 is: 4,288.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,465.50 : 7,542.39 = 3,107.80 : x
  2. Step 2: Convert to fraction form
    5,465.50/7,542.39 = 3,107.80/x
  3. Step 3: Cross multiply
    5,465.50x = 7,542.39 × 3,107.80
  4. Step 4: Simplify right side
    5,465.50x = 23,440,239.64
  5. Step 5: Solve for x
    x = 23,440,239.64/5,465.50
  6. Step 6: Final answer
    x = 4,288.76

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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.