Home / 5,122.51-7,068.28-2,884.33

Finding the Fourth Proportional to 5,122.51, 7,068.28 and 2,884.33

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Solution

The fourth proportional to 5,122.51, 7,068.28 and 2,884.33 is: 3,979.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,122.51 : 7,068.28 = 2,884.33 : x
  2. Step 2: Convert to fraction form
    5,122.51/7,068.28 = 2,884.33/x
  3. Step 3: Cross multiply
    5,122.51x = 7,068.28 × 2,884.33
  4. Step 4: Simplify right side
    5,122.51x = 20,387,252.05
  5. Step 5: Solve for x
    x = 20,387,252.05/5,122.51
  6. Step 6: Final answer
    x = 3,979.93

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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.