Home / 5,092.39-7,638.72-2,130.22

Finding the Fourth Proportional to 5,092.39, 7,638.72 and 2,130.22

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Solution

The fourth proportional to 5,092.39, 7,638.72 and 2,130.22 is: 3,195.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,092.39 : 7,638.72 = 2,130.22 : x
  2. Step 2: Convert to fraction form
    5,092.39/7,638.72 = 2,130.22/x
  3. Step 3: Cross multiply
    5,092.39x = 7,638.72 × 2,130.22
  4. Step 4: Simplify right side
    5,092.39x = 16,272,154.12
  5. Step 5: Solve for x
    x = 16,272,154.12/5,092.39
  6. Step 6: Final answer
    x = 3,195.39

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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.