Home / 5,172.47-7,137.07-3,379.48

Finding the Fourth Proportional to 5,172.47, 7,137.07 and 3,379.48

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Solution

The fourth proportional to 5,172.47, 7,137.07 and 3,379.48 is: 4,663.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,172.47 : 7,137.07 = 3,379.48 : x
  2. Step 2: Convert to fraction form
    5,172.47/7,137.07 = 3,379.48/x
  3. Step 3: Cross multiply
    5,172.47x = 7,137.07 × 3,379.48
  4. Step 4: Simplify right side
    5,172.47x = 24,119,532.74
  5. Step 5: Solve for x
    x = 24,119,532.74/5,172.47
  6. Step 6: Final answer
    x = 4,663.06

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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.