Home / 5,422.14-8,085.62-5,122.04

Finding the Fourth Proportional to 5,422.14, 8,085.62 and 5,122.04

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Solution

The fourth proportional to 5,422.14, 8,085.62 and 5,122.04 is: 7,638.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,422.14 : 8,085.62 = 5,122.04 : x
  2. Step 2: Convert to fraction form
    5,422.14/8,085.62 = 5,122.04/x
  3. Step 3: Cross multiply
    5,422.14x = 8,085.62 × 5,122.04
  4. Step 4: Simplify right side
    5,422.14x = 41,414,841.44
  5. Step 5: Solve for x
    x = 41,414,841.44/5,422.14
  6. Step 6: Final answer
    x = 7,638.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.