Home / 5,122.81-7,068.52-2,883.87

Finding the Fourth Proportional to 5,122.81, 7,068.52 and 2,883.87

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Solution

The fourth proportional to 5,122.81, 7,068.52 and 2,883.87 is: 3,979.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,122.81 : 7,068.52 = 2,883.87 : x
  2. Step 2: Convert to fraction form
    5,122.81/7,068.52 = 2,883.87/x
  3. Step 3: Cross multiply
    5,122.81x = 7,068.52 × 2,883.87
  4. Step 4: Simplify right side
    5,122.81x = 20,384,680.16
  5. Step 5: Solve for x
    x = 20,384,680.16/5,122.81
  6. Step 6: Final answer
    x = 3,979.20

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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.