Home / 5,216.69-7,147.47-5,143.79

Finding the Fourth Proportional to 5,216.69, 7,147.47 and 5,143.79

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Solution

The fourth proportional to 5,216.69, 7,147.47 and 5,143.79 is: 7,047.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,216.69 : 7,147.47 = 5,143.79 : x
  2. Step 2: Convert to fraction form
    5,216.69/7,147.47 = 5,143.79/x
  3. Step 3: Cross multiply
    5,216.69x = 7,147.47 × 5,143.79
  4. Step 4: Simplify right side
    5,216.69x = 36,765,048.97
  5. Step 5: Solve for x
    x = 36,765,048.97/5,216.69
  6. Step 6: Final answer
    x = 7,047.59

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.