Home / 5,122.58-7,068.54-2,884.10

Finding the Fourth Proportional to 5,122.58, 7,068.54 and 2,884.10

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Solution

The fourth proportional to 5,122.58, 7,068.54 and 2,884.10 is: 3,979.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,122.58 : 7,068.54 = 2,884.10 : x
  2. Step 2: Convert to fraction form
    5,122.58/7,068.54 = 2,884.10/x
  3. Step 3: Cross multiply
    5,122.58x = 7,068.54 × 2,884.10
  4. Step 4: Simplify right side
    5,122.58x = 20,386,376.21
  5. Step 5: Solve for x
    x = 20,386,376.21/5,122.58
  6. Step 6: Final answer
    x = 3,979.71

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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.