Home / 2,192.62-3,289.60-1,316.10

Finding the Fourth Proportional to 2,192.62, 3,289.60 and 1,316.10

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Solution

The fourth proportional to 2,192.62, 3,289.60 and 1,316.10 is: 1,974.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,192.62 : 3,289.60 = 1,316.10 : x
  2. Step 2: Convert to fraction form
    2,192.62/3,289.60 = 1,316.10/x
  3. Step 3: Cross multiply
    2,192.62x = 3,289.60 × 1,316.10
  4. Step 4: Simplify right side
    2,192.62x = 4,329,442.56
  5. Step 5: Solve for x
    x = 4,329,442.56/2,192.62
  6. Step 6: Final answer
    x = 1,974.55

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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.