Home / 5,345.80-8,021.10-2,422.60

Finding the Fourth Proportional to 5,345.80, 8,021.10 and 2,422.60

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Solution

The fourth proportional to 5,345.80, 8,021.10 and 2,422.60 is: 3,634.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,345.80 : 8,021.10 = 2,422.60 : x
  2. Step 2: Convert to fraction form
    5,345.80/8,021.10 = 2,422.60/x
  3. Step 3: Cross multiply
    5,345.80x = 8,021.10 × 2,422.60
  4. Step 4: Simplify right side
    5,345.80x = 19,431,916.86
  5. Step 5: Solve for x
    x = 19,431,916.86/5,345.80
  6. Step 6: Final answer
    x = 3,634.99

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.