Home / 5,122.26-7,068.72-2,884.14

Finding the Fourth Proportional to 5,122.26, 7,068.72 and 2,884.14

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Solution

The fourth proportional to 5,122.26, 7,068.72 and 2,884.14 is: 3,980.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,122.26 : 7,068.72 = 2,884.14 : x
  2. Step 2: Convert to fraction form
    5,122.26/7,068.72 = 2,884.14/x
  3. Step 3: Cross multiply
    5,122.26x = 7,068.72 × 2,884.14
  4. Step 4: Simplify right side
    5,122.26x = 20,387,178.10
  5. Step 5: Solve for x
    x = 20,387,178.10/5,122.26
  6. Step 6: Final answer
    x = 3,980.11

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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.