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Finding the Fourth Proportional to 5,216.19, 7,146.79 and 5,143.29

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Solution

The fourth proportional to 5,216.19, 7,146.79 and 5,143.29 is: 7,046.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,216.19 : 7,146.79 = 5,143.29 : x
  2. Step 2: Convert to fraction form
    5,216.19/7,146.79 = 5,143.29/x
  3. Step 3: Cross multiply
    5,216.19x = 7,146.79 × 5,143.29
  4. Step 4: Simplify right side
    5,216.19x = 36,758,013.54
  5. Step 5: Solve for x
    x = 36,758,013.54/5,216.19
  6. Step 6: Final answer
    x = 7,046.91

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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.