Home / 5,115.25-7,628.10-5,068.54

Finding the Fourth Proportional to 5,115.25, 7,628.10 and 5,068.54

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Solution

The fourth proportional to 5,115.25, 7,628.10 and 5,068.54 is: 7,558.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,115.25 : 7,628.10 = 5,068.54 : x
  2. Step 2: Convert to fraction form
    5,115.25/7,628.10 = 5,068.54/x
  3. Step 3: Cross multiply
    5,115.25x = 7,628.10 × 5,068.54
  4. Step 4: Simplify right side
    5,115.25x = 38,663,329.97
  5. Step 5: Solve for x
    x = 38,663,329.97/5,115.25
  6. Step 6: Final answer
    x = 7,558.44

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.