Home / 5,122.16-7,069.26-2,884.47

Finding the Fourth Proportional to 5,122.16, 7,069.26 and 2,884.47

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Solution

The fourth proportional to 5,122.16, 7,069.26 and 2,884.47 is: 3,980.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,122.16 : 7,069.26 = 2,884.47 : x
  2. Step 2: Convert to fraction form
    5,122.16/7,069.26 = 2,884.47/x
  3. Step 3: Cross multiply
    5,122.16x = 7,069.26 × 2,884.47
  4. Step 4: Simplify right side
    5,122.16x = 20,391,068.39
  5. Step 5: Solve for x
    x = 20,391,068.39/5,122.16
  6. Step 6: Final answer
    x = 3,980.95

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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.